Classification of Wagner 2023
†Bellerophon fraternus Billings 1866
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†Bellerophon miser Billings 1865
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†Bellerophon solitarius Billings 1866
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†Eotomaria laphami Whitfield 1878
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†Bucaniopsis forbesi Reed 1921
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Unr. Metazoa Haeckel 1874
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Fm. †Nectocarididae Conway Morris 1976
Invalid names: Muricassis [nomen vanum], Sentularia Unknown 1758 [nomen vanum]
Cl. †Tergomya Horný 1965
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Or. †Archinacellida Knight and Yochelson 1958
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Superfm. †Archinacelloidea Knight 1956
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Fm. †Damilinidae Horný 1961
Fm. †Metoptomatidae Wenz 1938
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G. †Calloconus Perner 1903
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†Calloconus avus Perner 1903
†Calloconus concentrica Tolmachoff 1930
†Calloconus devonica Tolmachoff 1930
†Calloconus gibbosa Perner 1903
†Calloconus pompeckji Perner 1903
†Calloconus recta Tolmachoff 1930
Or. †Kiringellida Rozov 1975
Superfm. †Scenelloidea Miller 1889
Or. Tryblidiida Lemche 1957
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Superfm. †Kiringelloidea Starobogatov 1970
Superfm. †Tryblidioidea von Zittel 1899
G. †Bipulvina Yochelson 1958
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†Bipulvina croftsae Yochelson 1958
†Bipulvina liaoningensis Yü and Yochelson 1999
G. †Drahomira Perner 1907
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†Drahomira glaseri Perner 1903
†Drahomira kriziana Horný 2005
G. †Ellsworthoconus Webers et al. 1992
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†Ellsworthoconus andersoni Webers et al. 1992
†Ellsworthoconus barabuensis Whitfield 1878
†Ellsworthoconus bridgei Kobayashi 1933
G. †Helcionopsis Ulrich and Scofield 1897
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†Helcionopsis depressum Ulrich and Scofield 1897
†Helcionopsis radiatum Lindström 1884
†Helcionopsis striata Ulrich and Scofield 1897
†Helcionopsis subcarinata Ulrich and Scofield 1897
†Helcionopsis wisconsinensis Ulrich and Scofield 1897
G. †Kalbyella Berg-Madsen and Peel 1978
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†Kalbyella poulseni Berg-Madsen and Peel 1978
G. †Micropileus Wilson 1951
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†Micropileus obesus Wilson 1951
†Micropileus ottawanus Wilson 1951
†Micropileus variabilis Wahlman 1992
G. †Pilina Koken and Perner 1925
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†Pilina acuminatum Koken and Perner 1925
†Pilina esthonum Koken 1897
†Pilina ovoideum Koken and Perner 1925
†Pilina solarium Lindström 1884
†Pilina unguis Angelin and Lindström 1880
G. †Tryblidium Angelin and Lindström 1880
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†Tryblidium arctica Poulsen 1974
†Tryblidium erato Billings 1865
†Tryblidium eubule Billings 1865
†Tryblidium exserta Sardeson 1892
†Tryblidium hyrie Billings 1865
†Tryblidium modestum Ulrich and Scofield 1897
†Tryblidium niobe Billings 1865
†Tryblidium nycteis Billings 1865
†Tryblidium ovale Whitfield 1886
†Tryblidium ovatum Whitfield 1886
†Tryblidium reticulatum Angelin and Lindström 1880
†Tryblidium rugosum Bradley 1930
†Tryblidium simplex Whitfield 1886
†Tryblidium thorsteinssoni Boucot 1975
G. †Vallatotheca Foerste 1914
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†Vallatotheca anticostiensis Twenhofel 1928
†Vallatotheca elegantula Chapman 1916
†Vallatotheca manitoulini Foerste 1914
†Vallatotheca unguiformis Ulrich and Scofield 1897
G. †Cyrtolites Conrad 1838
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†Cyrtolites budleighensis Reed 1921
†Cyrtolites claysferryensis Wahlman 1992
†Cyrtolites craigensis Reed 1921
†Cyrtolites dilatus Ulrich and Scofield 1897
†Cyrtolites disjunctus Ulrich and Scofield 1897
†Cyrtolites grandis Koken 1897
†Cyrtolites hornyi Wahlman 1992
†Cyrtolites inornatum Hall 1845
†Cyrtolites inprobus Perner 1903
†Cyrtolites insculptus Northrop 1939
†Cyrtolites nodosus Salter and Aveline 1854
†Cyrtolites occultus Perner 1903
†Cyrtolites ornatus Conrad 1838
†Cyrtolites retrorsus Ulrich and Scofield 1897
†Cyrtolites rugosus Perner 1903
†Cyrtolites seminulum Perner 1903
†Cyrtolites thraivensis Reed 1921
†Cyrtolites tuboides Perner 1903
†Cyrtolites undulatus Perner 1903
G. †Gasconadeoconus Stinchcomb 1986
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†Gasconadeoconus ponderosa Stinchcomb 1986
†Gasconadeoconus waynesvillensis Stinchcomb 1986
G. †Oriostoma Munier-Chalmas 1876
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†Oriostoma actaeon Perner 1907
†Oriostoma acutum Lindström 1884
†Oriostoma angulatum Wahlenberg 1821
†Oriostoma approximans Perner 1903
†Oriostoma aspirans Perner 1903
†Oriostoma assidua Perner 1903
†Oriostoma barrandei Munier-Chalmas 1876
†Oriostoma barroisi Spitz 1907
†Oriostoma chaleurensis Northrop 1939
†Oriostoma compar Perner 1903
†Oriostoma confertissima Perner 1903
†Oriostoma conjugata Perner 1903
†Oriostoma coralli de Sowerby and Murchison 1839
†Oriostoma corniculum Perner 1907
†Oriostoma coronatum Lindström 1884
†Oriostoma costata Perner 1903
†Oriostoma delicata Perner 1903
†Oriostoma disjunctum Barrois 1889
†Oriostoma distans Lindström 1884
†Oriostoma dulcis Perner 1903
†Oriostoma echinatum Oehlert 1877
†Oriostoma gerbaulti Oehlert 1877
†Oriostoma giganteum Lindström 1884
†Oriostoma globosum von Schlotheim 1820
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Invalid names: Oriostoma huntingtonensis Kindle 1903 [synonym], Oriostoma macrolineata Whitfield 1878 [synonym], Oriostoma sulcata Hall 1843 [synonym]
†Oriostoma hoyi Hall 1861
†Oriostoma ingenua Perner 1903
†Oriostoma involuta Barrois 1889
†Oriostoma konincki Oehlert 1877
†Oriostoma leda d'Orbigny 1850
†Oriostoma lineatum Lindström 1884
†Oriostoma niagarensis Hall and Whitfield 1875
†Oriostoma nux Lindström 1884
†Oriostoma oblita Perner 1903
†Oriostoma ornatula Perner 1903
†Oriostoma parens Perner 1903
†Oriostoma parvula Whiteaves 1895
†Oriostoma pauper Hall 1867
†Oriostoma paveyi Foerste 1919
†Oriostoma persculpta Perner 1907
†Oriostoma pervetusta Conrad 1838
†Oriostoma polygonum Barrois 1889
†Oriostoma potens Perner 1903
†Oriostoma pulchra Perner 1903
†Oriostoma recedens Perner 1903
†Oriostoma robusta Perner 1903
†Oriostoma roemeri Lindström 1884
†Oriostoma rotundimuratus Tassell 1976
†Oriostoma rugaelineata Hall and Whitfield 1872
†Oriostoma sarydalchaensis Gubanov et al. 1995
†Oriostoma sculpta Murchison 1839
†Oriostoma selecta Perner 1903
†Oriostoma sequens Perner 1903
†Oriostoma speciosum Whiteaves 1892
†Oriostoma subcostata Perner 1903
†Oriostoma tegulata Perner 1903
†Oriostoma tenera Perner 1903
†Oriostoma thorsteinssoni Rohr and Smith 1978
†Oriostoma tremulans Perner 1903
†Oriostoma ventricosa Perner 1903
†Oriostoma versata Perner 1903
†Oriostoma wisbyense Lindström 1884
†Oriostoma zonata Koken and Perner 1925
†Oriostoma zonatum Lindström 1884
G. †Sinuitopsis Perner 1903
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†Sinuitopsis congruens Reed 1921
†Sinuitopsis hornyi Marek 1963
†Sinuitopsis neglecta Perner 1903
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Invalid names: Sinuitopsis incertus Perner 1903 [synonym], Sinuitopsis platynotus Perner 1903 [synonym], Sinuitopsis transgrediens Perner 1903 [synonym]
†Sinuitopsis subquadrata Pitcher 1939
G. †Hypseloconus Berkey 1898
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†Hypseloconus bessemerense Ulrich et al. 1943
†Hypseloconus bonneterrense Stinchcomb 1975
†Hypseloconus compressus Ulrich et al. 1931
†Hypseloconus ozarkensis Ulrich et al. 1931
†Hypseloconus recurvus Berkey 1898
G. †Kirengella Rozov 1968
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†Kirengella alta Whitfield 1889
†Kirengella ayaktchica Rozov 1968
†Kirengella expansus Stinchcomb 1986
†Kirengella oregonensis Stinchcomb and Angeli 2002
†Kirengella pyramidalis Webers et al. 1992
†Kirengella stabilis Berkey 1898
†Kirengella washingtonense Stinchcomb 1975
G. †Knightoconus Yochelson et al. 1973
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†Knightoconus antarcticus Yochelson et al. 1973
G. †Shelbyoceras Ulrich et al. 1931
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†Shelbyoceras bigpineyensis Stinchcomb 1986
†Shelbyoceras robustum Ulrich and Foerste 1936
G. †Yochelsonella Flower 1968
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†Yochelsonella compressa Flower 1968
†Yochelsonella expansa Flower 1968
Cl. †Helcionelloida Peel 1991
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Fm. †Ceratoconidae Missarzhevsky 1989
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Or. †Helcionellida Geyer 1994
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Fm. †Coreospiridae Knight 1952
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Superfm. †Helcionelloidea Wenz 1938
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Fm. †Carinopeltidae Parkhaev 2013
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G. †Gonamella Val'kov and Karlova 1984
G. †Protoconus Yü 1979
G. †Rozanoviella Missarzhevsky 1980
G. †Squamiconus Vassiljeva 1990
Fm. †Helcionellidae Wenz 1938
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G. †Bemella Rozanov et al. 1969
G. †Oelandiella Vostokova 1962
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†Oelandiella aequa Resser 1939
†Oelandiella bellus Feng et al. 2000
†Oelandiella korobkovi Vostokova 1962
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Invalid names: Archaeospira ornata Yü 1979 [synonym], Oelandiella sibirica Vostokova 1962 [synonym], Pseudoyangtzespira selindeica Bokova 1990 [synonym]
†Oelandiella maidipingensis Yü 1974
Invalid names: Pseudoyangtzespira Bokova 1990 [synonym], Yangtzespira Yü 1979 [synonym]
G. †Papilloconus Feng et al. 2000
G. †Parapelagiella Kobayashi 1939
G. †Securiconus Jiang 1980
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†Securiconus emeiensis Yü 1979
†Securiconus jacuticus Rozanov and Missarzhevsky 1966
†Securiconus obscuricosta Zhou and Xiao 1984
†Securiconus simplex Yü 1979
Superfm. †Yochelcionelloidea Runnegar and Jell 1976
G. †Rostroconus
Invalid names: Helcionelliformes Golikov and Starobogatov 1975 [empty]
G. †Anabarella Vostokova 1962
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†Anabarella australis Bengtson et al. 1990
†Anabarella kuruktagensis Yü 1986
†Anabarella plana Vostokova 1962
†Anabarella simesi MacKinnon 1985
†Anabarella tshitaensis Parkhaev 2004
G. †Helcionella Grabau and Shimer 1909
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†Helcionella capula Geyer 1986
†Helcionella sidingshanensis Zhou and Xiao 1984
†Helcionella xinjiangensis Yü 1986
†Helcionella yunnanensis Zhang and Babcock 2002
G. †Latouchella Cobbold 1921
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†Latouchella accordionata Runnegar and Jell 1976
†Latouchella adunca Zhou and Xiao 1984
†Latouchella arcuata Gubanov et al. 2004
†Latouchella costata Cobbold 1921
†Latouchella dimicostata Wang 1994
†Latouchella ostenfeldense Skovsted 2004
G. †Leptostega Geyer 1986
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†Leptostega abrupta Shaler and Foerste 1888
†Leptostega irregularis Geyer 1986
G. †Mellopegma Runnegar and Jell 1976
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†Mellopegma georginensis Runnegar and Jell 1976
†Mellopegma indecora Rozanov et al. 1969
†Mellopegma uslonica Parkhaev 2004
G. †Oelandia Westergård 1936
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†Oelandia jingheensis Yü and Ning 1985
†Oelandia pauciplicata Westergård 1936
G. †Protowenella Runnegar and Jell 1976
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†Protowenella cobbensis MacKinnon 1985
†Protowenella flemingi Runnegar and Jell 1976
†Protowenella huainanensis Zhou and Xiao 1984
†Protowenella plena Missarzhevsky and Mambetov 1981
†Protowenella primaria Zhou and Xiao 1984
G. †Scenella Billings 1872
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†Scenella anomala Billings 1865
†Scenella augusta Billings 1865
†Scenella barrandei Linnarsson 1879
†Scenella conica Whiteaves 1884
†Scenella conicum Whitfield 1886
†Scenella magnifica Ulrich and Scofield 1897
†Scenella montrealensis Billings 1865
†Scenella obtusa Sardeson 1892
†Scenella orithyia Billings 1865
†Scenella reticulata Billings 1872
†Scenella unicarinata Kobayashi 1934
†Scenella venillia Billings 1865
G. †Stenotheca Hicks 1872
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†Stenotheca acutacosta Walcott 1890
†Stenotheca clotho Walcott 1912
†Stenotheca drepanoida He et al. 1984
†Stenotheca pojetai Runnegar and Jell 1976
†Stenotheca tepee Runnegar and Jell 1976
†Stenotheca transbaikalica Parkhaev 2004
G. †Conodia Stinchcomb and Darrough 1995
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†Conodia levicosta Stinchcomb and Darrough 1995
G. †Barskovia Golubev 1976
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†Barskovia hemisymmetrica Golubev 1976
†Barskovia jucunda Bokova 1990
G. †Beshtashella Missarzhevsky and Mambetov 1981
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†Beshtashella tortilis Missarzhevsky and Mambetov 1981
G. †Igorella Rozanov et al. 1969
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†Igorella iacobinica Geyer 1986
†Igorella lata Chen et al. 1981
†Igorella minuta Feng et al. 2000
†Igorella orientalis Chen et al. 1981
†Igorella talassica Missarzhevsky and Mambetov 1981
†Igorella xundianensis Wang 1994
G. †Ilsanella Missarzhevsky 1981
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†Ilsanella atdabanica Rozanov and Missarzhevsky 1966
†Ilsanella galinae Barskova 1988
†Ilsanella reticulata Zhou and Xiao 1984
†Ilsanella rozanovi Wang 1994
†Ilsanella savitskii Rozanov et al. 1969
G. †Khairkhania Missarzhevsky 1980
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†Khairkhania evoluta Voronin et al. 1982
†Khairkhania evoluto Elicki and Schneider 1992
†Khairkhania rotato Missarzhevsky 1980
G. †Mackenziella Voronova et al. 1987
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†Mackenziella dilatata Voronova et al. 1987
G. †Marocella Geyer 1986
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†Marocella depressa Kiær 1916
†Marocella mira Geyer 1986
†Marocella morenensis Yochelson and Gil Cid 1984
†Marocella tichkaensis Geyer 1986
G. †Obtusoconus Yü 1979
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†Obtusoconus foliaceus MacKinnon 1985
†Obtusoconus reduncus Gubanov et al. 2004
G. †Palaeoscurria Perner 1903
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†Palaeoscurria alternata Ríha 1938
†Palaeoscurria calyptrata Perner 1903
†Palaeoscurria capuliformis Spitz 1907
†Palaeoscurria ordovicina Horný 1963
†Palaeoscurria transversa Perner 1903
Invalid names: Palaeoscurria Perner 1903 [objective synonym]
G. †Paraceratoconus Zhou and Xiao 1984
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†Paraceratoconus ruidus Zhou and Xiao 1984
G. †Parailsanella Voronova et al. 1987
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†Parailsanella acris Voronova et al. 1987
†Parailsanella inpocera Zhegallo 1983
†Parailsanella lata Parkhaev 2001
†Parailsanella sayutinae Parkhaev 2004
G. †Pararaconus Bengtson et al. 1990
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†Pararaconus staitorum Bengtson et al. 1990
G. †Protoconchioides Shaw 1962
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†Protoconchioides conula Walcott 1884
†Protoconchioides douli Geyer 1994
†Protoconchioides hermitensis Resser 1945
†Protoconchioides rasettii Geyer 1994
†Protoconchioides varians Walcott 1886
†Protoconchioides virginica Resser 1938
G. †Purella Missarzhevsky 1974
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†Purella antiqua Kiær 1916
†Purella cristata Missarzhevsky 1974
†Purella squamulosa Qian and Bengtson 1989
G. †Pygmaeoconus Horný 1961
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†Pygmaeoconus compressus Koken and Perner 1925
†Pygmaeoconus conoideus Koken and Perner 1925
†Pygmaeoconus gnomicus Gutiérrez-Marco and Martin Sánchez 1983
†Pygmaeoconus hampakuensis Kobayashi 1934
†Pygmaeoconus krafti Horný 1997
†Pygmaeoconus porrectus Perner 1903
†Pygmaeoconus sohsanensis Kobayashi 1934
G. †Salanyella Missarzhevsky 1980
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†Salanyella costulata Missarzhevsky and Mambetov 1981
G. †Tichkaella Geyer 1986
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†Tichkaella carinata Rasetti 1957
†Tichkaella hamata Geyer 1986
†Tichkaella insulcata Rasetti 1957
G. †Xianfengella He and Yang 1982
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†Xianfengella prima He and Yang 1982
†Xianfengella yatesi Parkhaev 2001
G. †Hemithecella Butts 1941
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†Hemithecella abrupta Stinchcomb and Darrough 1995
†Hemithecella quinquelites Stinchcomb and Darrough 1995
Or. †Ribeirioida Kobayashi 1933
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Superfm. †Ischyrinioidea Kobayashi 1933
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Fm. †Ischyriniidae Kobayashi 1933
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G. †Tolmachovia Howell and Kobayashi 1936
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†Tolmachovia babini Gutiérrez-Marco 1997
†Tolmachovia belfordi Pojeta et al. 1977
†Tolmachovia concentrica Howell and Kobayashi 1936
†Tolmachovia corbetti Pojeta and Gilbert-Tomlinson 1977
†Tolmachovia crassa Thoral 1935
†Tolmachovia landeyranensis Babin 1982
Invalid names: Ischyrinoida Pojeta and Runnegar 1976 [synonym]
G. †Apoptopegma Pojeta et al. 1977
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†Apoptopegma craddocki Webers et al. 1992
†Apoptopegma dickinsi Pojeta et al. 1977
G. †Ischyrinia Billings 1866
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†Ischyrinia norvegica Soot-Ryen 1960
†Ischyrinia winchelli Billings 1866
G. †Kimopegma Pojeta et al. 1977
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†Kimopegma huckitta Pojeta et al. 1977
†Kimopegma jonesi Pojeta et al. 1977
†Kimopegma pinnatum Pojeta et al. 1977
G. †Myocaris Salter 1864
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†Myocaris plicata Billings 1866
†Myocaris sharpei Perner 1903
G. †Oepikila Pojeta and Runnegar 1976
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†Oepikila cambrica Runnegar and Pojeta 1974
G. †Pinnocaris Etheridge 1878
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†Pinnocaris americana Pojeta and Runnegar 1976
†Pinnocaris curvata Reed 1907
†Pinnocaris lapworthi Etheridge 1878
†Pinnocaris lembodes Xu 1990
†Pinnocaris robusta Pojeta et al. 1977
†Pinnocaris wellsi Pojeta et al. 1977
G. †Pseudotechnophorus Kobayashi 1933
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†Pseudotechnophorus typicalis Kobayashi 1933
G. †Ribeiria Sharpe 1853
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†Ribeiria apusoides Schubert and Waagen 1904
†Ribeiria australiensis Pojeta and Runnegar 1976
†Ribeiria bassleri Kobayashi 1933
†Ribeiria calcifera Billings 1865
†Ribeiria compressa Whitfield 1886
†Ribeiria csiro Pojeta et al. 1977
†Ribeiria francae Sánchez 2000
†Ribeiria lucan Walcott 1924
†Ribeiria manchurica Kobayashi 1933
†Ribeiria parva Collie 1903
†Ribeiria personata Thoral 1935
†Ribeiria pholadiformis Sharpe 1853
†Ribeiria pojetai Sánchez 2005
†Ribeiria runnegari Pojeta et al. 1977
†Ribeiria spinosa Babin and Branisa 1987
†Ribeiria taylori Pojeta and Runnegar 1976
G. †Technophorus Miller 1889
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†Technophorus bellistriatus Branson 1909
†Technophorus cancellatus Ruedemann 1901
†Technophorus cincinnatiense Miller and Faber 1894
†Technophorus divaricatus Ulrich 1892
†Technophorus faberi Miller 1889
†Technophorus filistriatus Ulrich 1892
†Technophorus kempae Pojeta et al. 1977
†Technophorus milleri Pojeta and Runnegar 1976
†Technophorus minutus Zhang 1984
†Technophorus nicolli Pojeta et al. 1977
†Technophorus oblongus Xu 1990
†Technophorus peregrinus Xu 1990
†Technophorus planei Pojeta et al. 1977
†Technophorus shiqianensis Xu 1990
†Technophorus subacutus Ulrich 1892
†Technophorus walteri Pojeta et al. 1977
G. †Wanwania Kobayashi 1933
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†Wanwania ambonychiformis Kobayashi 1933
†Wanwania cambrica Kobayashi 1933
†Wanwania drucei Pojeta et al. 1977
G. †Watsonella Grabau 1900
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†Watsonella crosbyi Grabau 1900
†Watsonella terranovica Matthew 1899
Invalid names: Heraultipegma Pojeta and Runnegar 1976 [synonym]
G. †Aphelakardia Hoare 1990
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†Aphelakardia alternistriata Herrick 1888
†Aphelakardia indianense Miller 1891
G. †Arceodomus Pojeta and Runnegar 1976
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†Arceodomus angusta Hoare et al. 2002
†Arceodomus cortazari Mallada 1875
†Arceodomus fritschi Gemmellaro 1890
†Arceodomus glabrata Easton 1962
†Arceodomus japonicum Nishida 1968
†Arceodomus langenheimi Wilson 1970
†Arceodomus ouralicum de Verneuil 1845
†Arceodomus prolata Hoare and Mapes 1990
†Arceodomus siculum Gemmellaro 1890
†Arceodomus snjatkovi Fedotov 1932
†Arceodomus sphairikos Hanger et al. 2000
G. †Bigalea Pojeta and Runnegar 1976
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†Bigalea ohioensis Pojeta and Runnegar 1976
†Bigalea yangi Pojeta and Runnegar 1976
G. †Bransonia Pojeta and Runnegar 1976
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†Bransonia australe M'Coy 1847
†Bransonia projecta Waterhouse 1987
†Bransonia robustum Fletcher 1943
†Bransonia truncata Fletcher 1943
†Bransonia wilsoni Pojeta and Runnegar 1976
G. †Cassowarioides Johnston and Chatterton 1983
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†Cassowarioides anisomorpha Caldwell and Chatterton 1995
†Cassowarioides perryi Johnston and Chatterton 1983
†Cassowarioides polgari Caldwell and Chatterton 1995
G. †Conocardium Bronn 1835
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†Conocardium aquisgranense Beushausen 1895
†Conocardium armatum Phillips 1836
†Conocardium elongatum Sowerby 1815
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Invalid names: Conocardium rostratum Fleming 1828 [replaced]
†Conocardium eximum de Koninck 1885
†Conocardium frater Whidborne 1896
†Conocardium gympiense Fletcher 1943
†Conocardium incarceratum Clarke 1907
†Conocardium inceptum Hall 1859
†Conocardium inflatum M'Coy 1844
†Conocardium longipennis Brown 1843
†Conocardium lyelli d’Archiac and de Verneuil 1842
†Conocardium nexile Branson 1942
†Conocardium philipsii d'Orbigny 1850
†Conocardium plinthinatus Branson 1942
†Conocardium pseudobellum Pojeta and Runnegar 1976
†Conocardium regulare de Koninck 1885
†Conocardium retusum Maurer 1885
†Conocardium sowerbyi de Koninck 1876
†Conocardium spinalatum Rowley 1900
†Conocardium ventriculosum Branson 1942
G. †Eopteria Billings 1865
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†Eopteria agustini Sánchez 2000
†Eopteria aiteneria Popov et al. 2003
†Eopteria conocardiformis Pojeta and Runnegar 1976
†Eopteria crassa Thoral 1935
†Eopteria flora Kobayashi 1933
†Eopteria ornata Billings 1865
†Eopteria richardsoni Billings 1865
†Eopteria struszi Pojeta et al. 1977
†Eopteria trilobita Kobayashi 1934
†Eopteria ventricosa Whitfield 1886
G. †Euchasma Billings 1865
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†Euchasma blumenbachi Billings 1859
†Euchasma colliveri Cook and Camilleri 2001
†Euchasma eopteriformis Kobayashi 1933
†Euchasma jonesi Pojeta and Runnegar 1976
†Euchasma multistriata Kobayashi 1933
†Euchasma mytiliforme Pojeta and Runnegar 1976
†Euchasma swarkoi Pojeta et al. 1977
Invalid names: Euchasmella Kobayashi 1933 [synonym]
G. †Hippocardia Brown 1843
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†Hippocardia alborza Hoare and Aghababula 2001
†Hippocardia angelicum Talent and Philip 1956
†Hippocardia bellulus Barrande 1881
†Hippocardia cumberlandiae Prosser and Kindle 1913
†Hippocardia curta Hoare 1989
†Hippocardia herculea de Koninck 1885
†Hippocardia herricki Hoare 1990
†Hippocardia hibernica Sowerby 1815
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Invalid names: Hippocardia trigonalis Phillips 1836 [synonym]
†Hippocardia hydei Hoare 1990
†Hippocardia hystericum von Schlotheim 1820
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Invalid names: Hippocardia marsi Oehlert 1887 [synonym]
†Hippocardia intersculpta Pohl 1929
†Hippocardia kermani Hoare and Aghababula 2001
†Hippocardia konincki Baily 1871
†Hippocardia monroica Sherzer and Grabau 1910
†Hippocardia mundulum Fletcher 1943
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Invalid names: Hippocardia abscissum Fletcher 1943 [synonym], Hippocardia laseroni Fletcher 1943 [synonym]
†Hippocardia niagarense Winchell and Marcy 1866
†Hippocardia obesum de Koninck 1885
†Hippocardia ohioense Meek 1871
†Hippocardia pristis M'Coy 1844
†Hippocardia procumbens Sandberger and Sandberger 1855
†Hippocardia pulchellum White and Whitfield 1862
†Hippocardia reflexa Zeiler 1857
†Hippocardia rhenana Beushausen 1895
†Hippocardia tournaisense Branson 1942
†Hippocardia truncata Pohl 1929
†Hippocardia ventricosum Hall 1860
G. †Mulceodens Pojeta and Runnegar 1976
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†Mulceodens aequicostatus Phillips 1848
†Mulceodens denticulatus Hall 1883
†Mulceodens eboraceus Hall 1860
†Mulceodens foxi Johnston and Chatterton 1983
†Mulceodens jaanussoni Pojeta and Runnegar 1976
†Mulceodens johnstoni Caldwell and Chatterton 1995
†Mulceodens schneideri Johnston and Chatterton 1983
†Mulceodens sibleyense La Rocque 1950
†Mulceodens wilsoni Johnston and Chatterton 1983
G. †Nehedia Johnston and Chatterton 1983
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†Nehedia bainsi Johnston and Chatterton 1983
†Nehedia bergeraci Caldwell and Chatterton 1995
†Nehedia grovesi Johnston and Chatterton 1983
†Nehedia restricta Caldwell and Chatterton 1995
†Nehedia tricarina Caldwell and Chatterton 1995
G. †Pojetaconcha Waterhouse 1987
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†Pojetaconcha alabamensis Pojeta and Runnegar 1976
†Pojetaconcha antiquata Branson 1942
†Pojetaconcha beecheri Raymond 1905
†Pojetaconcha chapronierei Pojeta et al. 1977
†Pojetaconcha cressmani Pojeta and Runnegar 1976
†Pojetaconcha davidis Dun 1907
†Pojetaconcha limatula Bradley 1930
†Pojetaconcha oweni Kindle 1903
†Pojetaconcha paquettensis Wilson 1956
†Pojetaconcha praepristis Reed 1952
†Pojetaconcha pygmaea Hisinger 1837
†Pojetaconcha townleyi Pojeta and Gilbert-Tomlinson 1977
G. †Pseudoconocardium Zavodowsky 1960
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†Pseudoconocardium licharewi Zavodowsky 1960
G. †Wanwanella Kobayashi 1933
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†Wanwanella striata Kobayashi 1933
†Wanwanella trigonalis Kobayashi 1933
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Invalid names: Wanwanella tumida Kobayashi 1933 [synonym]
Invalid names: Wanwanwoidea Kobayashi 1933 [synonym]
G. †Bagenovia Horný 1957
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†Bagenovia kazakhstanica Koneva 1976
†Bagenovia procera Koneva 1976
†Bagenovia sajanica Horný 1957
Cl. †Paragastropoda Linsley and Kier 1984
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Or. †Mimospirida Dzik 1983
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Superfm. †Clisospiroidea Miller 1889
Invalid names: Hyperstrophina Linsley and Kier 1984 [objective synonym], Mimospirina Dzik 1983 [empty]
G. †Angulospira Wängberg-Eriksson 1979
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†Angulospira striata Wängberg-Eriksson 1979
G. †Bodospira Wängberg-Eriksson 1979
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†Bodospira kallholniensis Wängberg-Eriksson 1979
†Bodospira undulata Wängberg-Eriksson 1979
G. †Clisospira Billings 1865
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†Clisospira bassleri Raymond 1908
†Clisospira borkholmiensis Koken and Perner 1925
†Clisospira christianieae Koken and Perner 1925
†Clisospira curiosa Billings 1865
†Clisospira ellitsgaardi Peel 1986
†Clisospira ingrica Koken 1897
†Clisospira niuhsintaiensis Kobayashi 1933
†Clisospira reticulata Longstaff 1924
†Clisospira rugosa Koken 1897
G. †Conoclisa Horný 1964
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†Conoclisa minuta Perner 1903
†Conoclisa schucherti Perner 1903
G. †Kobayashiella Endo 1937
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†Kobayashiella circe Walcott 1905
†Kobayashiella heritagensis Webers et al. 1992
G. †Laeogyra Perner 1903
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†Laeogyra arvetensis Wängberg-Eriksson 1979
†Laeogyra bohemica Perner 1903
†Laeogyra gracilis Koken 1897
†Laeogyra reinwaldti Öpik 1930
G. †Matherella Walcott 1912
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†Matherella antarctica Webers et al. 1992
†Matherella lirata Whitfield 1886
†Matherella saratogensis Walcott 1886
†Matherella walcotti Kobayashi 1933
Invalid names: Matherellina Kobayashi 1933 [synonym]
G. †Mimospira Koken and Perner 1925
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†Mimospira abbae Peel 1975
†Mimospira acuticostata Bates 1963
†Mimospira balclatchiensis Longstaff 1924
†Mimospira barrandei Frýda 1989
†Mimospira cochleata Lindström 1884
†Mimospira kallholniensis Wängberg-Eriksson 1979
†Mimospira similis Wängberg-Eriksson 1979
†Mimospira tenuistriata Wängberg-Eriksson 1979
G. †Onychochilus Lindström 1884
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†Onychochilus abruptum Foerste 1893
†Onychochilus contrarium Lindström 1884
†Onychochilus perversa Lindström 1884
†Onychochilus pervertens Perner 1903
†Onychochilus physa Lindström 1884
†Onychochilus reticulatum Lindström 1884
†Onychochilus reversus Hall 1860
†Onychochilus sinistralis Rohr and Smith 1978
Invalid names: Palaeopupa Foerste 1893 [synonym]
G. †Tapinogyra Wängberg-Eriksson 1979
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†Tapinogyra glaphyra Wängberg-Eriksson 1979
G. †Trochoclisa Horný 1964
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†Trochoclisa bouceki Frýda and Manda 1997
†Trochoclisa perfida Horný 1964
G. †Undospira Wängberg-Eriksson 1979
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†Undospira striata Wängberg-Eriksson 1979
†Undospira turrita Koken and Perner 1925
G. †Yuwenia Runnegar 1981
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Cl. Gastropoda Cuvier 1795 [snail]
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Or. †Bellerophontida Ulrich and Scofield 1897
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Subor. †Bellerophontina Ulrich and Scofield 1897
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Superfm. †Tropidodiscoidea Knight 1956
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Fm. †Tropidodiscidae Knight 1956
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G. †Nylanderina Boucot et al. 1967
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†Nylanderina bisulcata Römer 1843
†Nylanderina goldringae Boucot et al. 1967
G. †Sinuitina Knight 1945
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†Sinuitina acutilira Hall 1859
†Sinuitina brevilineatus Conrad 1842
†Sinuitina cordiformis Newell 1935
†Sinuitina gratiosus de Koninck 1883
†Sinuitina hyalina Clarke 1904
†Sinuitina morzadeci Blodgett et al. 1999
†Sinuitina multirugatus Cowper Reed 1906
†Sinuitina nudidorsa Rollins 1975
†Sinuitina oldhami Portlock 1843
†Sinuitina planilata Ebbestad and Yochelson 2000
†Sinuitina portulacoides Campbell and Engel 1963
†Sinuitina punjabica Reed 1944
†Sinuitina slavinka Horný 1962
†Sinuitina spinari Horný 1963
G. †Spirilira Pinilla et al. 2007
Subfm. †Temnodiscinae Horný 1962
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G. †Cyrtolitina Ulrich and Scofield 1897
G. †Eobucania Kobayashi 1955
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†Eobucania bohemica Horný 1997
†Eobucania mexicana Yochelson 1968
†Eobucania palinurus Billings 1865
†Eobucania pulchra Kobayashi 1955
†Eobucania subovatus Cleland 1900
G. †Peruniscus Horný 1962
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†Peruniscus cassinensis Whitfield 1886
†Peruniscus macer Billings 1865
†Peruniscus pusillus Perner 1903
†Peruniscus ramseyensis Hicks 1873
G. †Strepsodiscus Knight 1948
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†Strepsodiscus franconiensis Berkey 1898
†Strepsodiscus hoyti Walcott 1890
†Strepsodiscus major Knight 1948
†Strepsodiscus minutissimus Walcott 1879
†Strepsodiscus pagoda Walcott 1905
†Strepsodiscus paucivoluta Calvin 1892
†Strepsodiscus praecursor Knight 1948
†Strepsodiscus shinetonensis Callaway 1877
†Strepsodiscus splettstoesseri Webers et al. 1992
†Strepsodiscus strongi Whitfield 1878
Invalid names: Chalarostrepsis Knight 1948 [synonym]
G. †Temnodiscus Koken 1896
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†Temnodiscus accola Koken 1896
†Temnodiscus arrosus Lindström 1884
†Temnodiscus euryomphalus Lindström 1884
†Temnodiscus eximius Perner 1903
†Temnodiscus fletcheri Reed 1921
†Temnodiscus ingricus Koken and Perner 1925
†Temnodiscus lamellifer Lindström 1884
†Temnodiscus minuta Koken and Perner 1925
†Temnodiscus nautilinus Koken and Perner 1925
†Temnodiscus nitidula Ulrich 1879
†Temnodiscus obliquus Lindström 1884
†Temnodiscus ogygiae Koken and Perner 1925
†Temnodiscus orbiculus Lindström 1884
†Temnodiscus parvus Koken and Perner 1925
†Temnodiscus pharetroides Chapman 1916
†Temnodiscus pleurogonus Koken and Perner 1925
†Temnodiscus salopiensis Reed 1921
†Temnodiscus secans Koken 1897
†Temnodiscus solitarius Reed 1921
†Temnodiscus suecicus Koken 1897
†Temnodiscus viator Koken and Perner 1925
G. †Vorticina Gordon and Yochelson 1987
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†Vorticina anneae Conkin 1957
†Vorticina cyrtolites Hall 1858
†Vorticina vortex Gordon and Yochelson 1987
G. †Zonidiscus Spitz 1907
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†Zonidiscus clemvillensis Northrop 1939
†Zonidiscus discus Lindström 1884
†Zonidiscus grayi Reed 1921
†Zonidiscus incola Perner 1903
†Zonidiscus youngi Foerste 1889
G. †Anapetopsis Peel 1975
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†Anapetopsis fasciatus Lindström 1884
†Anapetopsis fastigiatus Lindström 1884
†Anapetopsis lalajae Peel 1975
†Anapetopsis maclearni Peel 1975
G. †Aspidotheca Dahmer 1936
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†Aspidotheca schrieli Dahmer 1936
†Aspidotheca tripleura Fuchs 1913
G. †Bellerophon de Montfort 1808
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†Bellerophon alutaceus d'Orbigny 1850
†Bellerophon barrandei Oehlert 1877
†Bellerophon bicarenus Léveillé 1835
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Invalid names: Bellerophon scalifer de Koninck 1883 [synonym]
†Bellerophon chapmani Blodgett 1992
†Bellerophon chesterensis Weller 1920
†Bellerophon clarki Clarke and Swartz 1913
†Bellerophon cresswelli Etheridge 1891
†Bellerophon creswelli Etheridge 1891
†Bellerophon goslariensis Roemer 1856
†Bellerophon graphicus Moore 1941
†Bellerophon havliceki Horný 1963
†Bellerophon helena Hall 1879
†Bellerophon hyalina Hall 1879
†Bellerophon incomptus Gurley 1884
†Bellerophon janus Stache 1877
†Bellerophon jeffersonensis Weller 1906
†Bellerophon kyndalynensis Yoo 1994
†Bellerophon laticallis Hoare et al. 1997
†Bellerophon latofasciatus Sandberger and Sandberger 1853
†Bellerophon ledburiensis Reed 1921
†Bellerophon lineatus Dechen 1832
†Bellerophon livengoodensis Blodgett 1992
†Bellerophon macromphalus Römer 1843
†Bellerophon macrostoma Römer 1843
†Bellerophon mansfieldianus Girty 1927
†Bellerophon mongoliensis Grabau 1931
†Bellerophon nactus Hall 1879
†Bellerophon nevadensis Blodgett and Johnson 1992
†Bellerophon newberryi Meek 1871
†Bellerophon pelops Hall 1862
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Invalid names: Bellerophon exponens Hall 1879 [synonym], Bellerophon glyptotaenius Radabaugh 1942 [synonym], Bellerophon homalotaenius Radabaugh 1942 [synonym]
†Bellerophon pygmaeus d'Eichwald 1859
†Bellerophon ruthveni Reed 1901
†Bellerophon scaber Perner 1903
†Bellerophon scheii Tolmachoff 1930
†Bellerophon shelbiensis Clarke and Ruedemann 1903
†Bellerophon singularis Moore 1941
†Bellerophon solvensis Hicks 1873
†Bellerophon spergensis Gordon and Yochelson 1983
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Invalid names: Bellerophon sublaevis Hall 1856 [replaced]
†Bellerophon stummi Linsley 1968
†Bellerophon swainsensis Yoo 1994
†Bellerophon vasulites de Montfort 1808
G. †Bucanella Meek 1871
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†Bucanella crispata Koken 1897
†Bucanella homalotropis Koken 1897
†Bucanella nana Meek 1871
†Bucanella revaliensis Koken 1897
†Bucanella tripla Whitfield 1889
G. †Bucania Hall 1847
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†Bucania aotii Kobayashi 1958
†Bucania cornu Koken 1897
†Bucania czekanowskii Schmidt 1858
†Bucania dorsoplana Knod 1908
†Bucania draboviensis Perner 1903
†Bucania elliptica Ulrich and Scofield 1897
†Bucania gracillima Koken 1896
†Bucania groenlandica Peel 1991
†Bucania halli Ulrich and Scofield 1897
†Bucania minganensis Twenhofel 1938
†Bucania oelandica Koken 1896
†Bucania peracuta Ulrich and Scofield 1897
†Bucania pilula Lindström 1884
†Bucania playfairi Reed 1921
†Bucania pojetai Wahlman 1992
†Bucania radiata d'Eichwald 1856
†Bucania reticulata Koken and Perner 1925
†Bucania robusta Whiteaves 1904
†Bucania rugatina Ulrich and Scofield 1897
†Bucania simulatrix Ulrich and Scofield 1897
†Bucania squamosus Lindström 1884
†Bucania stephnae Peel 1991
†Bucania subangulata Ulrich and Scofield 1897
†Bucania sublata Ulrich and Scofield 1897
†Bucania sulcatina Emmons 1842
†Bucania tsuibonensis Kobayashi 1934
G. †Carinaropsis Hall 1847
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†Carinaropsis carinata Hall 1847
†Carinaropsis cunulae Hall 1861
†Carinaropsis explanata Ulrich and Scofield 1897
†Carinaropsis gracilis Reed 1921
†Carinaropsis maccoyi Reed 1921
†Carinaropsis minima Ulrich and Scofield 1897
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Invalid names: Carinaropsis acuta Ulrich and Scofield 1897 [synonym]
G. †Collina Jhaveri 1969
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†Collina altemontanus Spitz 1907
†Collina exquisitus Spitz 1907
†Collina telescopus Frech 1894
†Collina whidbornei Perner 1903
G. †Cymbularia Koken 1896
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†Cymbularia aequalis Koken and Perner 1925
†Cymbularia alatus Portlock 1843
†Cymbularia angusta Koken 1897
†Cymbularia bullatus Koken and Perner 1925
†Cymbularia compressa Koken and Perner 1925
†Cymbularia cultrijugata Roemer 1876
†Cymbularia decipens Reed 1921
†Cymbularia decorata Ríha 1936
†Cymbularia drummuckensis Reed 1921
†Cymbularia galeata Koken 1896
†Cymbularia janica Horný 1963
†Cymbularia klouceki Horný 1997
†Cymbularia lenticularis Koken 1897
†Cymbularia merita Reed 1921
†Cymbularia nuciformis Perner 1903
†Cymbularia nummulina Koken and Perner 1925
†Cymbularia pygmaea Koken and Perner 1925
†Cymbularia roemeri Koken and Perner 1925
†Cymbularia sculptus Perner 1903
†Cymbularia turnbulli Reed 1921
†Cymbularia woodlandensis Reed 1921
G. †Euphemites Warthin 1930
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†Euphemites barumensis Whidborne 1896
†Euphemites blaneyanus McChesney 1859
†Euphemites compressus Elias 1958
†Euphemites devoniana Radabaugh 1942
†Euphemites enodis Sturgeon 1964
†Euphemites fremontensis Kulas and Batten 1997
†Euphemites hermosus Kues and Batten 2001
†Euphemites incarinatus Easton 1943
†Euphemites kingi Yochelson 1960
†Euphemites konincki Weir 1931
†Euphemites labrosa Campbell and Engel 1963
†Euphemites lentiformis Weller 1916
†Euphemites luxuriosus Yochelson 1960
†Euphemites multiliratus Sturgeon 1964
†Euphemites nautiloides Winchell 1862
†Euphemites nodocarinatus Hall 1858
†Euphemites obsoleta Hall 1879
†Euphemites orbignyanus Portlock 1843
†Euphemites pustula Yoo 1994
†Euphemites richardsoni Schindel and Yochelson 1979
†Euphemites sacajawensis Branson 1937
†Euphemites sparciliratus Yochelson 1960
†Euphemites stamineus Conrad 1842
†Euphemites subglobosus Hyde 1953
†Euphemites urei Fleming 1828
†Euphemites vittatus McChesney 1859
†Euphemites wongi Yin 1932
G. †Groomodiscus Rohr and Yochelson 1990
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†Groomodiscus bouceki Horný 1997
†Groomodiscus buccinoideum Reed 1921
†Groomodiscus calcifer Cleland 1900
†Groomodiscus planulatus Endo 1932
†Groomodiscus rossi Rohr and Yochelson 1990
G. †Knightites Moore 1941
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†Knightites bransoni Yochelson 1960
†Knightites maximus Yochelson 1960
†Knightites medius Yochelson 1960
†Knightites multicornutus Moore 1941
Invalid names: Knightites (Knightites) Moore 1941 [invalid subgroup]
G. †Kodymites Horný 1962
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†Kodymites nestor Horný 1962
†Kodymites vulcanus Horný 1963
G. †Kokenospira Bassler 1915
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†Kokenospira costalis Ulrich and Scofield 1897
†Kokenospira credibilis Reed 1921
†Kokenospira esthona Koken 1889
†Kokenospira euphemoides Reed 1921
†Kokenospira girvanensis Reed 1921
†Kokenospira inflata Koken 1897
†Kokenospira insularis Koken and Perner 1925
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Invalid names: Kokenospira depressa Koken 1897 [synonym]
†Kokenospira lateralis d'Eichwald 1860
†Kokenospira lingualis Salter and Aveline 1854
†Kokenospira maccullochi Reed 1921
†Kokenospira mullochensis Reed 1921
†Kokenospira nicholsoni Reed 1921
†Kokenospira retifera Öpik 1930
†Kokenospira secundus Reed 1906
†Kokenospira subdecussatus M'Coy 1851
G. †Liljevallospira Knight 1945
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†Liljevallospira elegantulus Lindström 1884
†Liljevallospira tubulosa Lindström 1884
G. †Megalomphala Ulrich and Scofield 1897
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†Megalomphala carinata Ebbestad 1999
†Megalomphala contorta d'Eichwald 1856
†Megalomphala crassa Koken 1896
†Megalomphala dawesi Peel 1991
†Megalomphala gotlandica Peel 1991
†Megalomphala latissima Koken 1897
†Megalomphala marjorae Peel 1991
†Megalomphala pinguis Koken and Perner 1925
†Megalomphala salpinx Koken 1897
†Megalomphala septentrionale Poulsen 1974
†Megalomphala taenia Lindström 1884
†Megalomphala wilfredi Peel 1991
G. †Merriamites Blodgett and Johnson 1995
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†Merriamites eurekae Blodgett and Johnson 1992
G. †Paleuphemites Horný 1962
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†Paleuphemites petrboki Horný 1962
†Paleuphemites quebecensis Clarke 1908
G. †Patellostium Waagen 1880
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†Patellostium britannicum Amler and Heidelberger 2003
†Patellostium witryanum de Koninck 1843
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Invalid names: Patellostium hyalinum de Ryckholt 1847 [synonym], Patellostium phalenum de Ryckholt 1847 [synonym]
G. †Pharetrolites Wenz 1938
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†Pharetrolites bambachi Peel 1975
†Pharetrolites elegans Koken and Perner 1925
†Pharetrolites murchisoni de Ferrusac and d'Orbigny 1840
†Pharetrolites pharetra Lindström 1884
†Pharetrolites tumidus Koken 1896
†Pharetrolites vostokovae Rohr et al. 1979
G. †Phragmolites Conrad 1838
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†Phragmolites bellulus Ulrich and Scofield 1897
†Phragmolites compressus Conrad 1838
†Phragmolites dyeri Hall 1872
†Phragmolites excavatus Koken and Perner 1925
†Phragmolites fimbriata Ulrich and Scofield 1897
†Phragmolites girvanensis Reed 1921
†Phragmolites hyperboreus Troedsson 1928
†Phragmolites imbricata Meek and Worthen 1868
†Phragmolites lindstroemi Koken and Perner 1925
†Phragmolites obliquus Ulrich and Scofield 1897
†Phragmolites pannosus Billings 1866
†Phragmolites sladensis Reed 1921
†Phragmolites slawsoni Hussey 1926
†Phragmolites suarezi Fischer 1969
†Phragmolites triangularis Ulrich and Scofield 1897
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Invalid names: Phragmolites grandis Ulrich and Scofield 1897 [synonym]
Invalid names: Conradella Ulrich and Scofield 1897 [synonym]
G. †Plectonotus Clarke 1899
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†Plectonotus derbyi Clarke 1899
†Plectonotus dereimsi Knod 1908
†Plectonotus hapsideus Clarke 1913
†Plectonotus laticarinata Knod 1908
†Plectonotus quadrilobatus Reed 1904
†Plectonotus raricostatus Radabaugh 1942
†Plectonotus rectangularis Knod 1908
†Plectonotus reissi Clarke 1899
†Plectonotus salteri Clarke 1899
G. †Praematuratropis Rollins et al. 1971
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†Praematuratropis ovatus Rollins et al. 1971
G. †Pterotheca Salter 1853
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†Pterotheca anatiformis Hall 1847
†Pterotheca angusta Raymond 1921
†Pterotheca anticostiana Twenhofel 1928
†Pterotheca attenuata Hall 1861
†Pterotheca avirostris Huxley and Etheridge 1865
†Pterotheca clochensis Foerste 1924
†Pterotheca consorbina Barrande 1872
†Pterotheca drummuckensis Reed 1909
†Pterotheca estona Teichert 1928
†Pterotheca expansa Emmons 1842
†Pterotheca girvanensis Reed 1909
†Pterotheca harviei Foerste 1924
†Pterotheca lata Teichert 1930
†Pterotheca mullochensis Reed 1909
†Pterotheca multidecorata Reed 1909
†Pterotheca pentagona Foerste 1914
†Pterotheca saffordi Hall 1861
†Pterotheca simplex Reed 1909
†Pterotheca transversa Portlock 1843
†Pterotheca transversa Portlock 1843
†Pterotheca trimerelloides Clarkson et al. 1995
†Pterotheca undulata Hall 1861
G. †Ptychosphaera Perner 1903
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†Ptychosphaera carinata de Sowerby and Murchison 1839
†Ptychosphaera constricta Perner 1903
†Ptychosphaera convolutus de Koninck 1876
†Ptychosphaera ouralicus Murchison et al. 1845
†Ptychosphaera thalia Hall 1859
G. †Retispira Knight 1945
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†Retispira boltoni Weir 1931
†Retispira carinatus Tolmachoff 1930
†Retispira christinae Cook et al. 2003
†Retispira crucilirata Dickins 1963
†Retispira culleni Campbell and Engel 1963
†Retispira decussatus Fleming 1828
†Retispira deflectus Weller 1900
†Retispira devonica Hall and Whitfield 1872
†Retispira elegans de Ferrusac and d'Orbigny 1840
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Invalid names: Retispira decussata Sandberger and Sandberger 1855 [synonym]
†Retispira elevata Heidelberger 2001
†Retispira exilis de Koninck 1883
†Retispira fascireticulatus Hoare et al. 1997
†Retispira fragilis Yochelson 1960
†Retispira keyniana de Koninck 1844
†Retispira leda Hall 1859
†Retispira lyelli Gemmellaro 1889
†Retispira makatikhae Jakowlew 1899
†Retispira marcouianus Geinitz 1866
†Retispira meekiana Shumard and Swallow 1858
†Retispira modesta Girty 1909
†Retispira monronensis Weller 1916
†Retispira multilirata Yoo 1994
†Retispira navicula Sowerby 1840
†Retispira nodocostata Gurley 1884
†Retispira nodulifera Hoare 1961
†Retispira ornatus Weller 1920
†Retispira otsego Hall 1859
†Retispira perelegans White and Whitfield 1862
†Retispira repertus Hall 1879
†Retispira reticulata Elias 1958
†Retispira reticulatus Tolmachoff 1930
†Retispira retifera Talent 1963
†Retispira rumpfi Kittl 1891
†Retispira solignaci Termier and Termier 1977
†Retispira subtilistriata Yin 1932
†Retispira suhaensis Kittl 1903
†Retispira tasselli Frýda 2000
†Retispira textiliformis Gurley 1883
†Retispira textilis Miller 1877
†Retispira triangularis Yoo 1994
†Retispira tumidus Sandberger and Sandberger 1853
†Retispira undata Etheridge 1876
†Retispira waverliensis Hyde 1953
Invalid names: Retispira kansasensis Shumard 1858 [nomen nudum]
G. †Salpingostoma Roemer 1876
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†Salpingostoma billingsi Wilson 1951
†Salpingostoma boreale Whiteaves 1904
†Salpingostoma buelli Whitfield 1878
†Salpingostoma canadensis Billings 1866
†Salpingostoma carnatum Ebbestad 1999
†Salpingostoma carrolense Koken and Perner 1925
†Salpingostoma compressum d'Eichwald 1840
†Salpingostoma cristatum Koken and Perner 1925
†Salpingostoma depressum Koken and Perner 1925
†Salpingostoma expansa Hall 1847
†Salpingostoma imbricata Ulrich and Scofield 1897
†Salpingostoma infundibulum Reed 1921
†Salpingostoma inornatum Northrop 1939
†Salpingostoma involutum Koken and Perner 1925
†Salpingostoma kokeni Teichert 1932
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Invalid names: Salpingostoma dilatatum de Sowerby and Murchison 1839 [synonym]
†Salpingostoma lata Foerste 1924
†Salpingostoma locator d'Eichwald 1860
†Salpingostoma macera Koken and Perner 1925
†Salpingostoma megalostoma d'Eichwald 1840
†Salpingostoma orientalis Twenhofel 1928
†Salpingostoma richmondensis Ulrich and Scofield 1897
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Invalid names: Salpingostoma soperi Wilson 1931 [synonym]
†Salpingostoma sculptilis Ulrich and Scofield 1897
†Salpingostoma shallochense Reed 1921
†Salpingostoma subtilistriatus Spriestersbach 1925
†Salpingostoma terrilli Grabau 1922
†Salpingostoma verrucosum Koken and Perner 1925
†Salpingostoma zaddachi Koken and Perner 1925
G. †Sinuites Koken 1896
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†Sinuites ammonoides Koken 1897
†Sinuites anceps Reed 1921
†Sinuites angulatus d'Eichwald 1840
†Sinuites angustus Koken 1896
†Sinuites bilobatus de Sowerby and Murchison 1839
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Invalid names: Sinuites gibbus Portlock 1843 [synonym]
†Sinuites cordateformis Yü 1961
†Sinuites corpulentus Koken and Perner 1925
†Sinuites crypticus Reed 1906
†Sinuites destombesi Horný 1997
†Sinuites globularis Miller and Faber 1894
†Sinuites gracilis Koken and Perner 1925
†Sinuites granistriatus Ulrich and Scofield 1897
†Sinuites minutus Emmons 1855
†Sinuites nanus d'Eichwald 1842
†Sinuites naviculoides Koken 1896
†Sinuites niger Koken 1897
†Sinuites nitens d'Eichwald 1860
†Sinuites obesa Ulrich and Scofield 1897
†Sinuites pervoluta Ulrich and Scofield 1897
†Sinuites pseudocompressus Reed 1921
†Sinuites pusgillensis Reed 1921
†Sinuites quadratus Koken and Perner 1925
†Sinuites rectangularis Ulrich and Scofield 1897
†Sinuites reticulatus Perner 1903
†Sinuites rotundata Yü 1961
†Sinuites rugulosus Koken 1897
†Sinuites semirugosus Reed 1921
†Sinuites soudleyensis Reed 1921
†Sinuites sowerbyi Perner 1903
†Sinuites subcompressa Ulrich and Scofield 1897
†Sinuites usitatus Isakar 1991
†Sinuites vetustus Koken 1897
G. †Sphenosphaera Knight 1945
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†Sphenosphaera bilineatus Ulrich and Scofield 1897
†Sphenosphaera burginensis Ulrich and Scofield 1897
†Sphenosphaera capax Ulrich and Scofield 1897
†Sphenosphaera centervillensis Foerste 1923
†Sphenosphaera consimilis Savage 1913
†Sphenosphaera eiseni Lindström 1884
†Sphenosphaera fiscellostriata Foerste 1887
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Invalid names: Sphenosphaera exigua Foerste 1887 [synonym]
†Sphenosphaera kepinensis Yü 1961
†Sphenosphaera laurentinus Twenhofel 1928
†Sphenosphaera mohri Miller 1874
†Sphenosphaera nana Ulrich and Scofield 1897
†Sphenosphaera opertus Foerste 1893
†Sphenosphaera platystoma Meek and Worthen 1868
†Sphenosphaera recurvus Ulrich and Scofield 1897
†Sphenosphaera rogersensis Foerste 1914
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Invalid names: Sphenosphaera clausus Ulrich and Scofield 1897 [replaced]
†Sphenosphaera similis Ulrich and Scofield 1897
†Sphenosphaera subangularis Ulrich and Scofield 1897
†Sphenosphaera subpatula Ulrich and Scofield 1897
†Sphenosphaera troosti de Ferrusac and d'Orbigny 1840
G. †Strangulites Horný 1962
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†Strangulites balclatchiensis Reed 1921
†Strangulites elongatus Portlock 1843
†Strangulites strangulatus Perner 1903
G. †Tetranota Ulrich and Scofield 1897
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†Tetranota bidorsata Hall 1847
†Tetranota carrickensis Reed 1921
†Tetranota charon Billings 1860
†Tetranota conspicua d'Eichwald 1840
†Tetranota craigensis Reed 1921
†Tetranota decurrens d'Eichwald 1860
†Tetranota divergens Koken 1897
†Tetranota hippopus Salter 1866
†Tetranota lineata Koken 1896
†Tetranota macra Ulrich and Scofield 1897
†Tetranota obsoleta Ulrich and Scofield 1897
†Tetranota rugosa Emmons 1855
†Tetranota sexcarinata Ulrich and Scofield 1897
†Tetranota silurica d'Eichwald 1840
†Tetranota undata Koken 1897
†Tetranota wisconsinensis Whitfield 1878
G. †Tritonophon Öpik 1953
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†Tritonophon carina Beushausen 1884
†Tritonophon kivitalonae Peel 1974
†Tritonophon peeli Horný 1997
†Tritonophon trilobatus de Sowerby and Murchison 1839
†Tritonophon trimetra Öpik 1953
G. †Tropidodiscus Meek and Worthen 1866
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†Tropidodiscus annularis Perner 1903
†Tropidodiscus antarcticus Clarke 1913
†Tropidodiscus arisaigensis Peel 1977
†Tropidodiscus carinatus Yoo 1994
†Tropidodiscus carnicus Spitz 1907
†Tropidodiscus centrifugulus Chapman 1916
†Tropidodiscus compticarinatus Linsley 1968
†Tropidodiscus cultricarinatus Linsley 1968
†Tropidodiscus curvilineatus Conrad 1842
†Tropidodiscus decussata Spitz 1907
†Tropidodiscus delanoui Oehlert and Oehlert 1888
†Tropidodiscus foliatus Cook 1995
†Tropidodiscus geyeri Frech 1894
†Tropidodiscus globosus Knod 1908
†Tropidodiscus imitator Koken 1889
†Tropidodiscus minimus Tschernischeff 1893
†Tropidodiscus nakazatensis Kase and Nishida 1986
†Tropidodiscus obex Clarke 1907
†Tropidodiscus phoenix Heidelberger 2001
†Tropidodiscus pragensis Horný 1963
†Tropidodiscus rotula de Koninck 1883
†Tropidodiscus vesculilineatus Linsley 1968
†Tropidodiscus waratahensis Tassell 1978
G. †Undulabucania Wahlman 1992
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†Undulabucania gorbyi Miller 1892
†Undulabucania punctifrons Emmons 1842
G. †Warthia Waagen 1880
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†Warthia fissus Yochelson 1960
†Warthia inflata Yin 1932
†Warthia kingi Moore 1941
†Warthia peregrinus Laube 1868
†Warthia semiaurita Waagen 1880
†Warthia waageni Yochelson 1960
Or. Patellogastropoda Lindberg 1986 [limpet]
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Superfm. Patelloidea Rafinesque 1815
G. †Archinacella Ulrich and Scofield 1897
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†Archinacella alta Wahlman 1992
†Archinacella approximans Koken and Perner 1925
†Archinacella arca Wahlman 1992
†Archinacella beloitensis Ulrich and Scofield 1897
†Archinacella cingulata Ulrich and Scofield 1897
†Archinacella clochensis Foerste 1914
†Archinacella davisi Wahlman 1992
†Archinacella deformata Hall 1847
†Archinacella deleta Sardeson 1892
†Archinacella depressa Ulrich and Scofield 1897
†Archinacella estella Billings 1865
†Archinacella explanata Wilson 1951
†Archinacella indianensis Miller 1892
†Archinacella instabilis Billings 1865
†Archinacella laevis Foerste 1924
†Archinacella magna Flower 1968
†Archinacella melissa Billings 1865
†Archinacella norwegica Koken and Perner 1925
†Archinacella patelliformis Hall 1847
†Archinacella perovalis Whitfield 1878
†Archinacella pileolum Whitfield 1889
†Archinacella prendergasti Reed 1906
†Archinacella pulaskiensis Foerste 1914
†Archinacella rotunda Ulrich and Scofield 1897
†Archinacella semicarinata Ulrich and Scofield 1897
†Archinacella simplex Billings 1865
†Archinacella simulatrix Ulrich and Scofield 1897
†Archinacella stoermeri Yochelson 1963
†Archinacella subcarinata Ulrich and Scofield 1897
†Archinacella subrotunda Ulrich and Scofield 1897
†Archinacella trentonensis Billings 1865
†Archinacella valida Sardeson 1892
†Archinacella wanwanensis Kobayashi 1933
G. †Floripatella Yochelson 1988
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†Floripatella humilis Ulrich and Scofield 1897
†Floripatella irregularis Raymond 1905
†Floripatella orphyne Billings 1865
†Floripatella quebecensis Billings 1865
†Floripatella rousseaui Yochelson 1988
G. †Lepetopsis Whitfield 1882
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†Lepetopsis chesterensis Worthen 1884
†Lepetopsis levettei White 1882
Or. †Euomphalina de Koninck 1881
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Superfm. †Craspedostomatoidea Wenz 1938
Superfm. †Euomphaloidea White 1877
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Fm. †Anomphalidae Wenz 1938
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G. †Diploconula Yochelson 1956
G. †Nodinella Heidelberger 2001
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†Nodinella dualia Heidelberger 2001
†Nodinella sterrmannia Heidelberger 2001
Fm. †Elasmonematidae Knight 1956
G. †Kitikamispira Kase and Nishida 1988
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†Kitikamispira bellense Tassell 1978
†Kitikamispira bicostatus Roemer 1855
†Kitikamispira concinna Hall 1876
†Kitikamispira crenulistriata Clarke and Swartz 1913
†Kitikamispira granosus Sandberger 1842
†Kitikamispira hamiltoniae Hall 1860
†Kitikamispira kanekoi Kase and Nishida 1988
†Kitikamispira minuitinodosa Blodgett and Johnson 1992
†Kitikamispira minutiforma Cook et al. 2003
†Kitikamispira monroei Cleland 1911
†Kitikamispira multistriata Clarke and Swartz 1913
†Kitikamispira ormistoni Blodgett 1992
†Kitikamispira perstrialis Fenton and Fenton 1924
†Kitikamispira speciosum Whiteaves 1892
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Invalid names: Kitikamispira filicostata Spriestersbach 1942 [synonym]
†Kitikamispira tubericosta Sandberger and Sandberger 1855
†Kitikamispira ukalundensis Cook 1995
Fm. †Microdomatidae Wenz 1938
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G. †Amaurotoma Knight 1945
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†Amaurotoma knighti Elias 1958
†Amaurotoma leavenworthana Hall 1856
†Amaurotoma subangulatum Hall 1856
†Amaurotoma subsinuata Meek and Worthen 1860
G. †Cyclites Knight 1940
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†Cyclites depressus Beede 1907
†Cyclites diminutus Kues and Batten 2001
†Cyclites globosa Weller 1916
G. †Cyclobathmus Knight 1940
G. †Kinkaidia Thein and Nitecki 1974
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†Kinkaidia cancellata Thein and Nitecki 1974
†Kinkaidia triserrata Batten 1966
†Kinkaidia uniserrata Batten 1966
G. †Knightinella Licharev 1975
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†Knightinella humerosa Meek and Hayden 1858
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Invalid names: Knightinella subturbinata Meek and Hayden 1858 [synonym]
G. †Tunstallia Hollingworth and Barker 1991
G. †Neoplatyteichum Maxwell 1964
Fm. †Omphalocirridae Wenz 1938
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G. †Omphalocirrus de Ryckholt 1860
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†Omphalocirrus beyeri Heidelberger 2001
†Omphalocirrus carnicus Frech 1894
†Omphalocirrus goldfussi d’Archiac and de Verneuil 1842
†Omphalocirrus kaukensis Gubanov et al. 1995
†Omphalocirrus kindlei Cleland 1911
†Omphalocirrus manitobensis Whiteaves 1890
†Omphalocirrus northi Etheridge 1890
†Omphalocirrus pulcher Paeckelmann 1913
†Omphalocirrus spinosus Sandberger and Sandberger 1854
Invalid names: Arctomphalus Tolmachoff 1930 [synonym], Hypomphalocirrus Linsley 1973 [synonym]
G. †Ornollus Heidelberger 2001
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†Ornollus annulatus Phillips 1841
†Ornollus decussatus Sandberger and Sandberger 1854
Fm. †Planitrochidae Knight 1956
G. †Serpulospira Cossmann 1915
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†Serpulospira annulatus Phillips 1841
†Serpulospira annulatus Whiteaves 1892
†Serpulospira centrifuga Römer 1843
†Serpulospira diversiformis Linsley 1968
†Serpulospira eboracensis Hall 1859
†Serpulospira laxus Hall 1859
†Serpulospira lituites Spitz 1907
†Serpulospira militaris Whidborne 1892
†Serpulospira minutilineatus Fagerstrom 1961
†Serpulospira planispira Hall 1856
†Serpulospira scalariformis Yoo 1994
†Serpulospira serpula d’Archiac and de Verneuil 1842
†Serpulospira solutus Spitz 1907
†Serpulospira swickae Blodgett and Johnson 1992
Fm. †Tychobraheidae Horný 1992
Invalid names: Omphalocirrinae Linsley 1973 [empty]
Superfm. †Oriostomatoidea Wenz 1938
Superfm. †Palaeotrochoidea Knight 1956
Superfm. †Platyceratoidea Hall 1859
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Fm. †Nerrhenidae Bandel and Heidelberger 2001
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G. †Hessonia Heidelberger 2001
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†Hessonia germana Heidelberger 2001
†Hessonia piligera Sandberger and Sandberger 1855
†Hessonia priscus Whitfield 1893
G. †Nerrhena Heidelberger and Bandel 1999
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†Nerrhena aequistriata Kirchner 1915
†Nerrhena reticulata Heidelberger and Bandel 1999
Invalid names: Nerrhenoidea Bandel and Heidelberger 2001 [synonym]
Invalid names: Omphalotrochoidea Knight 1945 [empty]
G. †Anomphalus Meek and Worthen 1866
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†Anomphalus blancus Kues and Batten 2001
†Anomphalus rotulus Meek and Worthen 1867
†Anomphalus umbilicoliratus Batten 1966
†Anomphalus verruculiferus White 1881
G. †Bassotrochus Tassell 1978
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†Bassotrochus angulatus Tassell 1978
†Bassotrochus serpenteus Talent 1963
G. †Boucotspira Rohr 1980
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†Boucotspira carinifer Koken 1896
†Boucotspira fimbriata Rohr 1980
†Boucotspira lamellosus Lindström 1884
†Boucotspira ordovicus Longstaff 1924
†Boucotspira ozawai Kobayashi 1930
†Boucotspira wisbyensis Lindström 1884
G. †Centrifugus Bronn 1835
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†Centrifugus planorbis Bronn 1835
†Centrifugus procera Perner 1907
G. †Ceratopea Ulrich 1911
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†Ceratopea buttsi Yochelson and Bridge 1957
†Ceratopea canadensis Billings 1865
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Invalid names: Ceratopea arabella Billings 1865 [synonym], Ceratopea calcifera Billings 1859 [synonym], Ceratopea macroconica Flower 1968 [synonym], Ceratopea praevium Whitfield 1889 [synonym], Pleurotomaria normani Billings 1865 [synonym]
†Ceratopea compressum Whitfield 1886
†Ceratopea depressa Butts 1926
†Ceratopea grandis Butts 1926
†Ceratopea hami Yochelson and Bridge 1957
†Ceratopea harpya Billings 1865
†Ceratopea inflata Cullison 1944
†Ceratopea kawasakii Kobayashi 1930
†Ceratopea latiumbilicata Poulsen 1927
†Ceratopea lemonei Flower 1968
†Ceratopea lenticularis Flower 1968
†Ceratopea medfraensis Rohr and Blodgett 1988
†Ceratopea miser Billings 1859
†Ceratopea numeria Billings 1865
†Ceratopea obtusa Cleland 1900
†Ceratopea parvum Stauffer 1937
†Ceratopea sculpta Cullison 1944
†Ceratopea sinclairensis Kobayashi 1955
†Ceratopea unguis Yochelson and Bridge 1957
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Invalid names: Eotomaria depressa Cullison 1944 [replaced]
†Ceratopea vagrans Billings 1865
Invalid names: Roubidouxia Butts 1926 [synonym]
G. †Cyclonema Hall 1852
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†Cyclonema aiens Sardeson 1896
†Cyclonema ampullosum Perner 1903
†Cyclonema ananas Perner 1903
†Cyclonema bellulum Billings 1866
†Cyclonema bilix Conrad 1842
†Cyclonema boreale Poulsen 1974
†Cyclonema canaliculata Angelin and Lindström 1880
†Cyclonema cancellatum Angelin and Lindström 1880
†Cyclonema cives Perner 1903
†Cyclonema compar Perner 1903
†Cyclonema composita Perner 1903
†Cyclonema consepultum Perner 1903
†Cyclonema convergens Perner 1903
†Cyclonema crebristria M'Coy 1851
†Cyclonema cushingi Ruedemann 1912
†Cyclonema daytonensis Foerste 1899
†Cyclonema decora Billings 1866
†Cyclonema delicatula Lindström 1884
†Cyclonema dowlingii Whiteaves 1906
†Cyclonema filicinctus Whiteaves 1904
†Cyclonema formosum Perner 1903
†Cyclonema gracile Ulrich and Scofield 1897
†Cyclonema gyronemoides Foerste 1923
†Cyclonema hageri Billings 1865
†Cyclonema hallianum Salter 1859
†Cyclonema humerosum Ulrich and Scofield 1897
†Cyclonema inaequistriatum Koken and Perner 1925
†Cyclonema inflatum Ulrich and Scofield 1897
†Cyclonema infrequens Perner 1907
†Cyclonema inopinata Perner 1907
†Cyclonema intermedium Bradley 1930
†Cyclonema karlsteinensis Perner 1903
†Cyclonema laudabile Perner 1903
†Cyclonema lepidula Perner 1903
†Cyclonema leptonotum Raymond 1905
†Cyclonema limatum Ulrich and Scofield 1897
†Cyclonema lineatum Koken 1897
†Cyclonema lydiamariarum Peel 1975
†Cyclonema margaritoides Whiteaves 1897
†Cyclonema marylandense Prosser and Kindle 1913
†Cyclonema mediale Ulrich and Scofield 1897
†Cyclonema minuta Hall 1845
†Cyclonema modestum Poulsen 1974
†Cyclonema montrealense Billings 1865
†Cyclonema niagarensis Winchell and Marcy 1866
†Cyclonema nodulosum Lindström 1884
†Cyclonema obsolescens Hall 1876
†Cyclonema parvimedium McLearn 1924
†Cyclonema percarinata Hall 1847
†Cyclonema percingulatum Billings 1857
†Cyclonema praecipitum Ulrich and Scofield 1897
†Cyclonema servus Perner 1903
†Cyclonema simulans Ulrich and Scofield 1897
†Cyclonema sublaeve Ulrich and Scofield 1897
†Cyclonema subundata Northrop 1939
†Cyclonema sulphuriferum Perner 1903
†Cyclonema textilis Miller 1897
†Cyclonema thalia Billings 1857
†Cyclonema timida Perner 1903
†Cyclonema timidum Perner 1903
†Cyclonema transversum Ulrich and Scofield 1897
†Cyclonema trepidans Perner 1903
†Cyclonema varians Billings 1857
†Cyclonema varicosum Hall 1861
†Cyclonema varispirum Twenhofel 1928
†Cyclonema ventricosa Hall 1852
Invalid names: Cyclonemina Perner 1903 [synonym]
G. †Discordichilus Cossmann 1918
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†Discordichilus aspersus Perner 1903
†Discordichilus conus Kindle 1900
†Discordichilus dalli Lindström 1884
†Discordichilus harmonia Billings 1865
†Discordichilus kolmodini Lindström 1884
†Discordichilus mollis Lindström 1884
†Discordichilus normalis Perner 1903
†Discordichilus obesum Lindström 1884
†Discordichilus venalis Perner 1903
Invalid names: Umbotrochus Perner 1903 [synonym]
G. †Ecculiomphalus Portlock 1843
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†Ecculiomphalus bucklandi Portlock 1843
†Ecculiomphalus compressus Whitfield 1897
†Ecculiomphalus fredericus Raymond 1902
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Invalid names: Ecculiomphalus proclivis Raymond 1906 [synonym]
†Ecculiomphalus harrisae Rohr 1994
†Ecculiomphalus magniumbilicatus Endo 1935
†Ecculiomphalus minor Portlock 1843
†Ecculiomphalus quebecensis Billings 1865
G. †Euomphalopsis Ulrich et al. 1931
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†Euomphalopsis involuta Ulrich et al. 1931
†Euomphalopsis magnus Rohr et al. 2002
G. †Holopea Hall 1847
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†Holopea ampullacea d'Eichwald 1860
†Holopea antiquata Perner 1903
†Holopea applanata Lindström 1884
†Holopea appressa Ulrich and Scofield 1897
†Holopea balticus Koken and Perner 1925
†Holopea brucei Rohr 1980
†Holopea concinna McCoy 1862
†Holopea concinnula Ulrich and Scofield 1897
†Holopea corrugata Twenhofel 1928
†Holopea eichwaldi Koken 1897
†Holopea elizabethi Rohr 1980
†Holopea enjalrani Clarke 1907
†Holopea excelsa Ulrich and Scofield 1897
†Holopea expandens Perner 1907
†Holopea filosus Koken and Perner 1925
†Holopea gaspesia Clarke 1908
†Holopea glindmeyeri Rohr 1980
†Holopea harpa Angelin and Lindström 1880
†Holopea inaequistriata Koken and Perner 1925
†Holopea inflata Yü 1961
†Holopea insignis Ulrich and Scofield 1897
†Holopea lavinia Billings 1865
†Holopea media Wilson 1951
†Holopea mediocris Billings 1866
†Holopea nicolettensis Foerste 1924
†Holopea nitidissima Lindström 1884
†Holopea obliqua Hall 1847
†Holopea obsoleta Hall 1852
†Holopea ottawaensis Wilson 1951
†Holopea paludiniformis Hall 1847
†Holopea parvula Ulrich and Scofield 1897
†Holopea perforata Lindström 1884
†Holopea plauta Raymond 1906
†Holopea praecursor Koken and Perner 1925
†Holopea pyrene Billings 1865
†Holopea rossbrookiensis Peel 1977
†Holopea rotunda Ulrich and Scofield 1897
†Holopea scalariforme Lindström 1884
†Holopea scrutator Raymond 1905
†Holopea similis Ulrich and Scofield 1897
†Holopea subtilis Ulrich and Scofield 1897
†Holopea supraplana Ulrich and Scofield 1897
†Holopea symmetrica Hall 1847
†Holopea undulata Wilson 1932
†Holopea vaurealensis Twenhofel 1928
G. †Hystricoceras Jahn 1894
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†Hystricoceras astraliformis Lindström 1884
†Hystricoceras hitchcocki Clarke 1907
†Hystricoceras lundgreni Lindström 1884
†Hystricoceras spinosum Jahn 1894
G. †Kiaeromphalus Peel and Yochelson 1976
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†Kiaeromphalus kristianiensis Peel and Yochelson 1976
†Kiaeromphalus undiferus Schmidt 1858
G. †Lecanospira Butts 1926
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†Lecanospira compacta Salter 1859
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Invalid names: Lecanospira knoxvillensis Allen and Lester 1954 [synonym], Lecanospira salteri Ulrich et al. 1931 [synonym], Lecanospira sigmoidea Ulrich et al. 1931 [synonym]
†Lecanospira lecanospiroides Bridge and Cloud 1947
†Lecanospira nerine Billings 1865
†Lecanospira transitionis Billings 1865
†Lecanospira transversocordatus Stauffer 1937
Invalid names: Lecanospira tasmanensis Kobayashi 1940 [nomen oblitum]
G. †Linsleyella Rohr 1980
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†Linsleyella greggi Rohr 1980
†Linsleyella johnsoni Rohr 1980
†Linsleyella spinosa Salter 1859
G. †Lophonema Purdue and Miser 1916
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†Lophonema abrupta Billings 1859
†Lophonema calphurnia Billings 1865
†Lophonema circumlirata Whitfield 1886
†Lophonema costata Kobayashi 1959
†Lophonema orientalia Yü 1961
†Lophonema peccatonica Sardeson 1896
†Lophonema perstriata Billings 1859
†Lophonema taneyensis Cullison 1944
†Lophonema tricarinata Billings 1859
†Lophonema wuhuensis Endo 1935
Invalid names: Polhemia Cullison 1944 [synonym]
G. †Lytospira Koken 1896
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†Lytospira angelini Lindström 1884
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Invalid names: Lytospira huenei Koken and Perner 1925 [synonym]
†Lytospira distans Billings 1865
†Lytospira nitida Twenhofel 1928
†Lytospira subrotunda Ulrich and Scofield 1897
†Lytospira undulatus Hall 1861
†Lytospira valida Koken 1897
G. †Macluritella Kirk 1927
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†Macluritella carinifera Flower 1968
†Macluritella gyroceras Roemer 1852
†Macluritella imperfecta Flower 1968
†Macluritella mediosulcata Kobayashi 1955
†Macluritella multiseptarius Cleland 1900
†Macluritella ornata Lochman 1966
†Macluritella peachi Murchison 1859
†Macluritella rotunda Flower 1968
†Macluritella sordida Hall 1847
†Macluritella stantoni Kirk 1927
†Macluritella uniangulata Hall 1847
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Invalid names: Macluritella tympama Kobayashi 1955 [synonym]
Invalid names: Bridegeina Flower 1968 [synonym]
G. †Malayaspira Kobayashi 1958
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†Malayaspira annulata Walcott 1884
†Malayaspira bella Billings 1865
†Malayaspira canningense Yu 1993
†Malayaspira hintzei Rohr 1994
†Malayaspira perkinsi Whitfield 1890
†Malayaspira speciosa Billings 1865
G. †Mastigospira La Rocque 1949
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†Mastigospira alata Whiteaves 1892
†Mastigospira ingens La Rocque 1949
†Mastigospira weberae Blodgett 1992
G. †Ophileta Vanuxem 1842
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†Ophileta alturensis Sardeson 1896
†Ophileta complanata Vanuxem 1842
†Ophileta discus Cleland 1900
†Ophileta polygyratus Roemer 1849
†Ophileta solida Butts 1926
†Ophileta supraplana Ulrich et al. 1931
G. †Ophiletina Ulrich and Scofield 1897
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†Ophiletina angularis Ulrich and Scofield 1897
†Ophiletina bromidensis Rohr and Johns 1990
†Ophiletina fausta Sardeson 1896
†Ophiletina sublaxa Ulrich and Scofield 1897
G. †Orecopia Knight 1945
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†Orecopia circinatus Fenton and Fenton 1924
†Orecopia cotei Pedder 1966
†Orecopia kadzielniae Gürich 1896
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Invalid names: Orecopia grabinensis Karczewski 1989 [synonym]
†Orecopia mccoyi Walcott 1884
†Orecopia murrayi Tassell 1978
†Orecopia priscum Schlotheim 1820
G. †Pachystrophia Perner 1903
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†Pachystrophia balclatchiensis Longstaff 1924
†Pachystrophia contiguus Ulrich and Scofield 1897
†Pachystrophia devexa d'Eichwald 1859
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Invalid names: Pachystrophia dissoluta Koken and Perner 1925 [synonym]
†Pachystrophia dilatata Perner 1903
†Pachystrophia gotlandicus Lindström 1884
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Invalid names: Pachystrophia circinatus Whiteaves 1884 [synonym]
†Pachystrophia helicoides Koken 1896
†Pachystrophia inchoans Perner 1903
†Pachystrophia inornatum Whiteaves 1884
†Pachystrophia lescarboti Clarke 1908
†Pachystrophia mullockensis Longstaff 1924
†Pachystrophia orinini Wenjukov 1899
†Pachystrophia subuloidea Perner 1903
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Invalid names: Pachystrophia rigida Perner 1907 [synonym]
†Pachystrophia triquestra Lindström 1884
†Pachystrophia tuba Lindström 1884
†Pachystrophia vortex d'Eichwald 1856
G. †Philoxene Kayser 1889
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†Philoxene alacer Perner 1903
†Philoxene argutus Fenton and Fenton 1924
†Philoxene caementarius Blodgett and Johnson 1992
†Philoxene cyclostomus Hall 1858
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Invalid names: Philoxene marylandicus Clarke and Swartz 1913 [synonym]
†Philoxene laevis d’Archiac and de Verneuil 1842
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Invalid names: Philoxene serpens Phillips 1841 [synonym]
†Philoxene mopsus Hall 1868
†Philoxene mortoni Linsley and Yochelson 1973
†Philoxene paveyi Foerste 1923
†Philoxene perlongus Perner 1903
†Philoxene perprofondus Perner 1903
†Philoxene planiformis Heidelberger and Bandel 1999
†Philoxene plicatulus Perner 1903
†Philoxene praestans Perner 1903
†Philoxene retrorsus Römer 1850
†Philoxene sodalis Perner 1903
G. †Pleuronotus Hall 1879
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†Pleuronotus confusus Perner 1903
†Pleuronotus decewi Billings 1861
G. †Poleumita Clarke and Ruedemann 1903
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†Poleumita alatum Lindström 1884
†Poleumita anabarica Kurushin 1986
†Poleumita crenulata Whiteaves 1884
†Poleumita discors Sowerby 1814
†Poleumita gyrans Lindström 1884
†Poleumita haliburtoni McLearn 1924
†Poleumita incarinatus Foerste 1893
†Poleumita mashkovae Kurushin 1986
†Poleumita myeri Goldfuss 1844
†Poleumita octavia d'Orbigny 1850
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Invalid names: Poleumita carinata de Sowerby and Murchison 1839 [replaced]
†Poleumita rugosa Sowerby 1814
†Poleumita semiplanus Perner 1907
†Poleumita subsulcatus Hisinger 1837
†Poleumita walmstedti Lindström 1884
G. †Pseudomphalotrochus Blodgett 1992
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†Pseudomphalotrochus bonapartensis Cook 1998
†Pseudomphalotrochus clarkei de Koninck 1876
†Pseudomphalotrochus cottrelli Linsley and Yochelson 1973
†Pseudomphalotrochus gibsoni Hoffman 1969
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Invalid names: Pseudomphalotrochus hoffmani Linsley and Yochelson 1973 [synonym], Pseudomphalotrochus hypotropis Radabaugh 1942 [synonym]
†Pseudomphalotrochus incrustatus Linsley and Yochelson 1973
†Pseudomphalotrochus leonhardi d’Archiac and de Verneuil 1842
†Pseudomphalotrochus linsleyi Blodgett 1992
†Pseudomphalotrochus philosophus Whidborne 1889
†Pseudomphalotrochus winnipegosis Linsley and Yochelson 1973
G. †Pseudophorus Meek 1873
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†Pseudophorus antiquus Meek 1871
†Pseudophorus bicarinatus Spitz 1907
†Pseudophorus carbonaria Meek and Worthen 1866
†Pseudophorus cavus Lindström 1884
†Pseudophorus excavata Perner 1903
†Pseudophorus limbatus d’Archiac and de Verneuil 1842
†Pseudophorus profundus Lindström 1884
†Pseudophorus stuxbergi Lindström 1884
G. †Pycnomphalus Lindström 1884
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†Pycnomphalus acutus Lindström 1884
†Pycnomphalus colemani Parks 1915
†Pycnomphalus concurrens Perner 1903
†Pycnomphalus helicites de Sowerby and Murchison 1839
†Pycnomphalus immaturus Perner 1903
†Pycnomphalus nummularius Perner 1903
†Pycnomphalus obesus Lindström 1884
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Invalid names: Pycnomphalus solarioides Hall 1852 [synonym]
†Pycnomphalus trochiformis Lindström 1884
G. †Raphistoma Hall 1847
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†Raphistoma alaskensis Rohr et al. 1992
†Raphistoma crevieri Billings 1859
†Raphistoma debganensis Horný 1997
†Raphistoma eucharis Billings 1865
†Raphistoma gubanovi Rohr 1994
†Raphistoma pelhamensis Butts 1926
†Raphistoma striatum Emmons 1842
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Invalid names: Raphistoma docens Billings 1859 [synonym], Raphistoma immaturum Billings 1859 [synonym]
G. †Scalites Emmons 1842
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†Scalites alatum Koken and Perner 1925
†Scalites amanoi Kobayashi 1958
†Scalites angulatus Emmons 1842
†Scalites depressa Longstaff 1924
†Scalites irregulare Kobayashi 1958
†Scalites jonesi Kobayashi 1959
†Scalites keizanensis Kobayashi 1934
†Scalites oradovekaiae Vostokova 1964
†Scalites peracutum Ulrich and Scofield 1897
†Scalites richmondensis Ulrich and Scofield 1897
†Scalites solitarius Endo 1935
†Scalites tamurai Kobayashi 1930
†Scalites tellerensis Rohr 1988
G. †Siluriphorus Cossmann 1918
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†Siluriphorus antiqua Cresswell 1893
†Siluriphorus fulminatus Lindström 1884
†Siluriphorus gotlandicus Lindström 1884
†Siluriphorus undulans Lindström 1884
G. †Sinutropis Perner 1903
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†Sinutropis esthetica Perner 1903
†Sinutropis interrumpens Perner 1903
†Sinutropis spiralis Rohr 1988
†Sinutropis tenera Perner 1903
G. †Spinicharybdis Rohr and Packard 1982
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†Spinicharybdis billingsi Rohr and Packard 1982
†Spinicharybdis canteriata Rohr and Packard 1982
†Spinicharybdis elora Billings 1865
†Spinicharybdis frenata Lindström 1884
†Spinicharybdis gasconsensis Northrop 1939
†Spinicharybdis wilsoni Rohr and Packard 1982
G. †Spirodentalium Walcott 1890
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†Spirodentalium osceola Walcott 1890
†Spirodentalium walcotti Howell 1946
G. †Streptotrochus Perner 1907
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†Streptotrochus amicus Perner 1903
†Streptotrochus cyclostoma Whiteaves 1884
†Streptotrochus deciduus Williams and Breger 1916
†Streptotrochus densestriatus Lindström 1884
†Streptotrochus incisus Lindström 1884
†Streptotrochus pressulus Tschernischeff 1885
†Streptotrochus rugulosus Perner 1907
G. †Trochomphalus Koken and Perner 1925
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†Trochomphalus borkholmiensis Koken 1897
†Trochomphalus dimidiatus Koken 1896
G. †Maclurites Le Sueur 1818
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†Maclurites altus Wilson 1931
†Maclurites atlanticus Billings 1859
†Maclurites borealis Wilson 1938
†Maclurites christianiae Koken and Perner 1925
†Maclurites crassa Ulrich and Scofield 1897
†Maclurites cuneata Whitfield 1878
†Maclurites expansa Koken and Perner 1925
†Maclurites florentinensis Banks and Johnson 1957
†Maclurites gravis Vostokova 1964
†Maclurites klamathensis Rohr 1980
†Maclurites magnus Le Sueur 1818
†Maclurites neritoides d'Eichwald 1860
†Maclurites oceana Billings 1865
†Maclurites ovalis Vostokova 1964
†Maclurites profunda Butts 1926
†Maclurites salteri Longstaff 1924
†Maclurites subrotunda Whitfield 1878
†Maclurites triangularis Teichert 1937
†Maclurites ungava Wilson 1938
G. †Palliseria Wilson 1924
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†Palliseria crenulata Billings 1865
†Palliseria robusta Wilson 1924
†Palliseria zhuozishanensis Yü 1961
G. †Teiichispira Yochelson and Jones 1968
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†Teiichispira affinis Billings 1865
†Teiichispira auricula Rohr 1994
†Teiichispira emmonsi Billings 1865
†Teiichispira nanus Flower 1968
†Teiichispira ponderosa Billings 1865
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Invalid names: Maclurites smithvillensis Fix 1975 [replaced]
†Teiichispira similis Whitfield 1890
†Teiichispira tofangoense Kobayashi 1930
†Teiichispira zonata Kobayashi 1959
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Invalid names: Teiichispira kobayashi Yochelson and Jones 1968 [synonym]
G. †Agnesia de Koninck 1883
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†Agnesia acuta Phillips 1836
†Agnesia dentatolimata Sandberger and Sandberger 1855
†Agnesia nodulosa Sandberger 1842
†Agnesia prosseri Hyde 1953
†Agnesia reticulata Yoo 1994
G. †Agniesella Cossmann 1909
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†Agniesella aratula Perner 1907
†Agniesella cancellata Phillips 1841
†Agniesella chudleighensis Whidborne 1889
†Agniesella wurmi Römer 1843
G. †Alaskiella Frýda and Blodgett 1998
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†Alaskiella medfraensis Frýda and Blodgett 1998
G. †Antitrochus Whidborne 1891
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†Antitrochus arietinus Whidborne 1891
†Antitrochus moelleri Tschernischew 1885
G. †Apachella Winters 1956
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†Apachella alamillano Girty 1909
†Apachella boydi Kulas and Batten 1997
†Apachella capertoni Beede 1907
†Apachella franciscana Chronic 1952
†Apachella pseudostrigillata Girty 1934
†Apachella sosiensis Gemmellaro 1889
†Apachella texana Girty 1908
†Apachella translirata Winters 1956
†Apachella turbiniformis Winters 1963
G. †Arjamannia Peel 1975
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†Arjamannia bellicarinata Donald 1906
†Arjamannia cancellatula Sedgwick and M'Coy 1855
†Arjamannia inexpectans Hall and Whitfield 1875
†Arjamannia pteronoides Longstaff 1924
†Arjamannia thraivensis Longstaff 1924
†Arjamannia woodlandi Longstaff 1924
G. †Astralites Whiteaves 1892
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†Astralites fimbriatus Whiteaves 1892
†Astralites gamblei Blodgett et al. 2003
†Astralites muelleri Heidelberger 2001
†Astralites sublimbatus d'Orbigny 1850
G. †Barrandecirrus Frýda 1997
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†Barrandecirrus consorbina Perner 1907
†Barrandecirrus filiformis Perner 1903
†Barrandecirrus normalis Perner 1903
G. †Bembexia Oehlert and Oehlert 1888
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†Bembexia babini Blodgett et al. 1999
†Bembexia chapernowni Whidborne 1892
†Bembexia crenatostriata Sandberger and Sandberger 1855
†Bembexia disjuncta Hall 1876
†Bembexia gradilispira Linsley and Kesling 1982
†Bembexia headillus Clarke 1909
†Bembexia insolita Hall 1876
†Bembexia laevis Ellison 1965
†Bembexia larteti Munier-Chalmas 1876
†Bembexia micula Tassell 1982
†Bembexia minima Rowley 1895
†Bembexia neapolitana Whidborne 1892
†Bembexia seminuda Whidborne 1892
†Bembexia tricinctus Römer 1843
Invalid names: Kersadiella Blodgett et al. 1999 [synonym]
G. †Beraunia Knight 1937
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†Beraunia bifrons Perner 1903
†Beraunia bohemica Perner 1903
†Beraunia carens Perner 1903
†Beraunia detersa Perner 1903
†Beraunia docens Perner 1903
†Beraunia elliptica Perner 1903
†Beraunia indocilis Perner 1903
†Beraunia placida Perner 1903
†Beraunia querenda Perner 1903
†Beraunia severa Perner 1903
†Beraunia vellerosa Perner 1903
†Beraunia verna Perner 1903
G. †Borestus Thomas 1940
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†Borestus costatus Yoo 1988
†Borestus heterospira Gemmellaro 1889
†Borestus wrighti Thomas 1940
G. †Brachytomaria Koken and Perner 1925
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†Brachytomaria baltica Murchison et al. 1845
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Invalid names: Brachytomaria plicifera d'Eichwald 1860 [synonym]
†Brachytomaria incisa Koken and Perner 1925
†Brachytomaria kiari Koken and Perner 1925
†Brachytomaria kindlei Foerste 1924
†Brachytomaria mundula Ulrich and Scofield 1897
†Brachytomaria papillosa Billings 1857
†Brachytomaria plautini Koken and Perner 1925
†Brachytomaria semele Hall 1861
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Invalid names: Brachytomaria notlingi Koken 1896 [synonym], Brachytomaria turbinata Koken and Perner 1925 [synonym]
†Brachytomaria solida Koken and Perner 1925
†Brachytomaria striata Ulrich and Scofield 1897
†Brachytomaria turricula Billings 1857
G. †Calaurops Whitfield 1886
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†Calaurops canadensis Billings 1861
†Calaurops lituiformis Whitfield 1886
G. †Cataschisma Branson 1909
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†Cataschisma convexa Longstaff 1924
†Cataschisma convexum Ulrich and Scofield 1897
†Cataschisma exquisita Lindström 1884
†Cataschisma latiangularis Branson 1909
†Cataschisma microsoma Koken and Perner 1925
†Cataschisma pillula Koken and Perner 1925
†Cataschisma ulrichi Schuchert 1900
G. †Cerithioides Haughton 1859
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†Cerithioides judiae Rollins 1975
†Cerithioides oweni Donald 1895
†Cerithioides telescopium Haughton 1859
G. †Chepultapecia Weller and St. Clair 1928
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†Chepultapecia leiosomella Sardeson 1896
G. †Cibecuia Winters 1956
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†Cibecuia cedarensis Winters 1956
†Cibecuia gouldii Beede 1907
G. †Coelozone Perner 1907
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†Coelozone hermannsteini Heidelberger 2001
†Coelozone verna Perner 1907
Invalid names: Kobayashiconcha Frýda 1998 [synonym]
G. †Conotoma Perner 1907
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†Conotoma aurora Blodgett and Johnson 1992
†Conotoma bispiralis Hall 1852
†Conotoma claustrata Lindström 1884
†Conotoma eximia Perner 1907
†Conotoma gradata Lindström 1884
†Conotoma latezonata Lindström 1884
†Conotoma nitella Hall 1860
†Conotoma pugnus Perner 1907
G. †Crassimarginata Jhaveri 1969
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†Crassimarginata crassicosta Jhaveri 1969
†Crassimarginata incerta Spitz 1907
†Crassimarginata tenuicosta Jhaveri 1969
G. †Crossoceras Boucot and Yochelson 1966
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†Crossoceras belandi Boucot and Yochelson 1966
†Crossoceras newberryi Hall 1860
G. †Daidia Wilson 1951
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†Daidia cerithioides Salter 1859
†Daidia peculiaris Wilson 1938
†Daidia sewardensis Frýda et al. 2001
†Daidia subconica Ulrich and Scofield 1897
†Daidia wilsonae Frýda et al. 2001
G. †Decorospira Blodgett and Johnson 1992
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†Decorospira gilberti Blodgett and Johnson 1992
†Decorospira lepaini Frýda and Blodgett 2004
†Decorospira minutula Frýda and Blodgett 2004
†Decorospira nodosa Etheridge, Jr. 1898
†Decorospira rigbyi Blodgett and Johnson 1992
†Decorospira tasselli Blodgett and Johnson 1992
†Decorospira tricinctus Roemer 1856
G. †Denayella Blodgett and Johnson 1992
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†Denayella bella Tyler 1965
†Denayella conoidea Tassell 1982
†Denayella housei Blodgett and Johnson 1992
†Denayella lomandraensis Cook and Camilleri 1997
†Denayella rotalia Hall 1862
G. †Donaldiella Cossmann 1903
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†Donaldiella catharina Billings 1865
†Donaldiella cicelia Billings 1865
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Invalid names: Donaldiella angulocincta Murchison 1859 [synonym], Donaldiella norvegica Holtedahl 1915 [synonym], Donaldiella sakamotoi Kobayashi 1930 [synonym], Donaldiella similior Endo 1935 [synonym], Lophospira pagodai Endo 1932 [synonym], Lophospira pagodai Endo 1932 [synonym]
†Donaldiella derwiduii Grabau 1922
†Donaldiella dorothea Grabau 1922
†Donaldiella filosa Donald 1902
†Donaldiella pagodai Endo 1932
†Donaldiella tetracarina Kobayashi 1930
G. †Eirlysia Batten 1956
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†Eirlysia exquisita Batten 1956
†Eirlysia reticulata Batten 1958
†Eirlysia spiralis Dietz 1911
G. †Elasmonema Fischer 1885
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†Elasmonema amabile Perner 1903
†Elasmonema bellatula Hall 1861
†Elasmonema clarki Nettelroth 1889
†Elasmonema corrugata Stauffer 1909
†Elasmonema elegans Hall 1860
†Elasmonema filosum Clarke 1904
†Elasmonema gracilis Tolmachoff 1930
†Elasmonema hermitei Munier-Chalmas 1876
†Elasmonema imitator Hall and Whitfield 1872
†Elasmonema improbum Perner 1907
†Elasmonema lichas Hall 1861
†Elasmonema surgens Perner 1903
G. †Eotomaria Ulrich and Scofield 1897
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†Eotomaria canalifera Ulrich and Scofield 1897
†Eotomaria dalecarlica Koken 1897
†Eotomaria dryope Billings 1865
†Eotomaria kjerulfi Koken and Perner 1925
†Eotomaria labiosa Ulrich and Scofield 1897
†Eotomaria notabilis d'Eichwald 1840
†Eotomaria perryi Rohr 1980
†Eotomaria tumida Koken and Perner 1925
G. †Eotrochus Whitfield 1882
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†Eotrochus marigoldensis Thein and Nitecki 1974
†Eotrochus tenuimarginatus Miller 1877
G. †Eucochlis Knight 1933
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†Eucochlis australis Yoo 1988
†Eucochlis depressa Yoo 1994
†Eucochlis perminuta Knight 1933
†Eucochlis umbiliparva Yoo 1994
G. †Euconia Ulrich and Scofield 1897
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†Euconia conicus Heller 1954
†Euconia etna Billings 1865
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Invalid names: Euconia beekmanensis Whitfield 1889 [synonym], Euconia thule Murchison 1859 [synonym]
†Euconia sinuata Flower 1968
†Euconia umbilicata Dake and Bridge 1932
G. †Euconospira Ulrich and Scofield 1897
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†Euconospira conica Phillips 1836
†Euconospira conimorpha de Koninck 1883
†Euconospira conula Hall 1856
†Euconospira disjuncta Girty 1910
†Euconospira elegantula Hall 1856
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Invalid names: Euconospira shumardi Meek and Worthen 1860 [synonym]
†Euconospira elongata Grabau 1931
†Euconospira equisita Hoare et al. 1997
†Euconospira hermosana Girty 1934
†Euconospira neptuni Münster 1840
†Euconospira nodosa Cook et al. 2003
†Euconospira perlimbata Grabau 1931
†Euconospira planoconvexa Grabau 1931
†Euconospira sturgeoni Thein and Nitecki 1974
†Euconospira trochiformis Longstaff 1912
†Euconospira turbiniformis Meek and Worthen 1860
†Euconospira varizona Batten 1958
†Euconospira waterlooensis Weller 1916
G. †Euryzone Koken 1896
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†Euryzone arata Hall 1862
†Euryzone basalestriatus Kirchner 1915
†Euryzone burdekininesis Cook 1997
†Euryzone calva Perner 1907
†Euryzone clausa Hall 1879
†Euryzone deformata Perner 1907
†Euryzone delphinuloides von Schlotheim 1820
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Invalid names: Euryzone crokeri Whidborne 1892 [synonym]
†Euryzone hullensis Cook et al. 2003
†Euryzone intermedia Tolmachoff 1930
†Euryzone itys Hall 1876
†Euryzone kayseri Koken 1889
†Euryzone kielcensis Gürich 1896
†Euryzone laevis Roemer 1855
†Euryzone latevittata Koken 1889
†Euryzone latitornata Linsley 1968
†Euryzone naticaeformis Sandberger and Sandberger 1853
†Euryzone patula Koken and Perner 1925
†Euryzone pharkidopyndax Linsley 1968
†Euryzone planiformis Heidelberger 2001
†Euryzone sublaevis Römer 1843
†Euryzone tenuispira Hall 1879
G. †Floyda Webster 1905
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†Floyda concentrica Webster 1905
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Invalid names: Floyda gigantea Hall and Whitfield 1873 [replaced]
†Floyda obliqua Spriesterbach 1919
G. †Gasconadia Weller and St. Clair 1928
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†Gasconadia floridensis Cleland 1900
†Gasconadia mohawkensis Cleland 1900
†Gasconadia putilla Sardeson 1896
G. †Globonema Wenz 1938
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†Globonema arctatum Ulrich and Scofield 1897
†Globonema carinata Angelin and Lindström 1880
†Globonema fatua Hall 1868
†Globonema fraternum Perner 1903
†Globonema kaysi Rohr et al. 1981
†Globonema kokeni Wenz 1938
†Globonema lyelli Perner 1903
†Globonema muricatum Lindström 1884
†Globonema niota Hall 1861
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Invalid names: Globonema obsoletum Ulrich and Scofield 1897 [synonym], Globonema robbinsi Ulrich and Scofield 1897 [synonym], Globonema salteri Ulrich and Scofield 1897 [replaced]
†Globonema pauperum Perner 1903
†Globonema peregrinum Perner 1903
†Globonema piersalense Koken 1897
†Globonema simile Ulrich and Scofield 1897
†Globonema turritum Lindström 1884
G. †Goniasma Tomlin 1930
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†Goniasma dalryensis Donald 1895
†Goniasma fischeri Stuckenberg 1905
†Goniasma helicaformis Sayre 1930
†Goniasma lasallense Worthen 1890
†Goniasma terebra White 1879
G. †Gosseletina Fischer 1885
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†Gosseletina aspeniana Girty 1927
†Gosseletina australis Etheridge 1917
†Gosseletina idahoensis Girty 1910
†Gosseletina isomorpha Gemmellaro 1889
†Gosseletina johnsoni Thein and Nitecki 1974
†Gosseletina nodosa Batten 1966
†Gosseletina permiana Batten 1989
†Gosseletina pratteni Meek and Worthen 1860
†Gosseletina subglobosa Miller 1877
G. †Hammatospira Gordon and Yochelson 1983
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†Hammatospira bellula Gordon and Yochelson 1983
†Hammatospira brazeriana Girty 1927
G. †Haplospira Koken 1897
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†Haplospira henningsmoeni Yochelson 1963
†Haplospira nereis Billings 1865
†Haplospira sibeliuxeni Peel 1975
†Haplospira variabilis Koken 1897
†Haplospira vermiculosa Perner 1903
G. †Helicotoma Salter 1859
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†Helicotoma blodgetti Rohr 1988
†Helicotoma gorgonea Billings 1865
†Helicotoma granosa Ulrich and Scofield 1897
†Helicotoma griffinorum Rohr 1980
†Helicotoma marginata Ulrich and Scofield 1897
†Helicotoma miser Billings 1865
†Helicotoma planulata Salter 1859
†Helicotoma robinsoni Rohr 1988
†Helicotoma superba Koken 1897
†Helicotoma tennesseensis Safford 1869
†Helicotoma whiteavesiana Raymond 1908
G. †Hesperiella Holzapfel 1889
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†Hesperiella canningensis Cook et al. 2003
†Hesperiella ebbighauseni Bandel 1993
†Hesperiella elongata Yoo 1994
†Hesperiella lahniensis Heidelberger 2001
†Hesperiella planorbis Yoo 1994
†Hesperiella robertsi Yoo 1988
†Hesperiella thomsoni de Koninck 1883
G. †Isonema Meek and Worthen 1866
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†Isonema linearis Keyes 1889
†Isonema verae Frech 1894
G. †Latitaenia Koken and Perner 1925
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†Latitaenia aequicrescens Koken 1897
†Latitaenia kirnaensis Koken and Perner 1925
†Latitaenia rotelloidea Koken 1896
†Latitaenia thulensis Koken 1896
G. †Liospira Ulrich and Scofield 1897
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†Liospira americana Billings 1860
†Liospira angustata Ulrich and Scofield 1897
†Liospira biconvexa Yü 1961
†Liospira cornovica Pitcher 1939
†Liospira decipens Ulrich and Scofield 1897
†Liospira lenticularis de Sowerby and Murchison 1839
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Invalid names: Liospira marklandensis McLearn 1924 [synonym]
†Liospira micula Hall and Whitney 1862
†Liospira modesta Ulrich and Scofield 1897
†Liospira peneplana Okulitch 1935
†Liospira perdepressa Poulsen 1974
†Liospira progne Billings 1860
†Liospira robertsi Reed 1906
†Liospira rossica Koken 1889
†Liospira taihakuensis Kobayashi 1934
†Liospira uriconiensis Pitcher 1939
†Liospira wesenbergense Koken 1897
G. †Littorinides Knight 1937
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†Littorinides sextalineatus Sandberger 1842
†Littorinides subclathratus Sandberger 1842
G. †Lodanaria Dahmer 1925
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†Lodanaria ecclesiae Clarke and Swartz 1913
†Lodanaria floryi Blodgett and Johnson 1992
†Lodanaria munda Dahmer 1925
†Lodanaria quadricarinata Stauffer 1909
G. †Longstaffia Cossmann 1908
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†Longstaffia centervillensis Foerste 1923
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Invalid names: Longstaffia angulata Pitcher 1939 [synonym], Longstaffia multicarinata Pitcher 1939 [synonym]
†Longstaffia complexa Perner 1903
†Longstaffia grata Perner 1903
†Longstaffia groomii Donald 1905
†Longstaffia laqueata Lindström 1884
†Longstaffia pulchra M'Coy 1844
†Longstaffia teretiuscula Perner 1907
†Longstaffia tubulosa Lindström 1884
†Longstaffia uniformis Cowper Reed 1901
G. †Lophospira Whitfield 1886
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†Lophospira alata Koken and Perner 1925
†Lophospira alternans Koken and Perner 1925
†Lophospira bilirata Hall 1860
†Lophospira billingsi Raymond 1905
†Lophospira concurrens Perner 1907
†Lophospira ferruginea Donald 1906
†Lophospira gyrogonia M'Coy 1851
†Lophospira infausta Perner 1903
†Lophospira jaekeli Koken and Perner 1925
†Lophospira kinosakii Kobayashi 1934
†Lophospira kuckersiana Teichert 1932
†Lophospira lyckholmiensis Teichert 1932
†Lophospira mickwitzi Koken 1896
†Lophospira milleri Miller 1877
+
Invalid names: Eunema ventricosa Yü 1961 [synonym], Lophospira aspera Billings 1859 [synonym], Lophospira bicincta Hall 1847 [synonym], Lophospira compressa Endo 1935 [synonym], Lophospira curvistriata Koken and Perner 1925 [synonym], Lophospira excavata Donald 1906 [synonym], Lophospira initialis Koken 1897 [synonym], Lophospira kentlandensis Shrock and Raasch 1937 [synonym], Lophospira medialis Ulrich and Scofield 1897 [synonym], Lophospira minuta Wilson 1938 [synonym], Lophospira perfecta Koken and Perner 1925 [synonym], Lophospira procera Ulrich and Scofield 1897 [synonym], Lophospira seelyi Raymond 1908 [synonym], Lophospira tienshanensis Yü 1961 [synonym]
†Lophospira obliqua Ulrich and Scofield 1897
†Lophospira ozakii Endo 1935
†Lophospira perangulata Hall 1847
+
Invalid names: Lophospira abbreviata Hall 1847 [replaced], Lophospira acuminata Ulrich and Scofield 1897 [synonym], Lophospira acuta Grabau 1922 [synonym], Lophospira angulata Butts 1926 [synonym], Lophospira aojii Endo 1932 [synonym], Lophospira borealis Donald 1902 [synonym], Lophospira elegans Endo 1935 [synonym], Lophospira elongata Butts 1926 [synonym], Lophospira endoi Kobayashi 1934 [synonym], Lophospira gerardi Grabau 1922 [synonym], Lophospira inconsueta Endo 1935 [synonym], Lophospira minuata Endo 1935 [synonym], Lophospira obliquestriata Longstaff 1924 [synonym], Lophospira perelegans Stauffer 1937 [synonym], Lophospira perforata Ulrich and Scofield 1897 [synonym], Lophospira pulchella Ulrich and Scofield 1897 [synonym], Lophospira pulchelliformis Grabau 1922 [synonym], Lophospira sinensis Yü 1961 [synonym], Lophospira sororcula Billings 1865 [synonym], Lophospira subcylindrica Yü 1961 [synonym], Lophospira subpulchella Kobayashi 1930 [synonym], Lophospira tateiwai Kobayashi 1934 [synonym], Lophospira tenuise Endo 1935 [synonym], Lophospira tricarinata Hall 1847 [synonym], Lophospira trilineata Secrist and Evitt 1943 [synonym], Lophospira turritiformis Endo 1932 [synonym], Lophospira vetusta Stauffer 1937 [synonym], Lophospira yentaiensis Endo 1932 [synonym]
†Lophospira rectistriata Raymond 1908
+
Invalid names: Lophospira bantatsuense Kobayashi 1930 [synonym], Lophospira manchuriensis Endo 1932 [synonym], Lophospira morrisi Grabau 1922 [synonym], Lophospira subabbreviata Raymond 1908 [synonym], Lophospira yabei Endo 1935 [synonym]
†Lophospira selecta Billings 1865
+
Invalid names: Lophospira grabaui Endo 1932 [synonym], Lophospira kangyaoensis Endo 1932 [synonym], Lophospira kodairai Kobayashi 1930 [synonym], Lophospira konnoi Kobayashi 1930 [synonym], Lophospira trochiformis Grabau 1922 [synonym], Lophospira trochoformis Butts 1926 [synonym]
†Lophospira serrulata Salter 1859
†Lophospira shallockensis Longstaff 1924
†Lophospira spironema Ulrich and Scofield 1897
†Lophospira subalata Koken and Perner 1925
†Lophospira subglobosa Donald 1906
†Lophospira terrassa Grabau 1922
†Lophospira tesakovi Kurushin 1986
†Lophospira trispiralis Donald 1906
†Lophospira variablis Donald 1902
†Lophospira ventricosa Hall 1847
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Invalid names: Lophospira conradana Ulrich and Scofield 1897 [synonym]
Invalid names: Lophospira angulata de Sowerby and Murchison 1839 [nomen vanum], Lophospira depauperata Hall and Whitney 1862 [nomen vanum]
G. †Loxoplocus Fischer 1885
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†Loxoplocus gothlandicus Ulrich and Scofield 1897
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Invalid names: Loxoplocus bijugosus Reed 1901 [synonym], Loxoplocus bucheri Foerste 1923 [synonym], Loxoplocus ehlersi Foerste 1923 [synonym], Loxoplocus guelphicus Whiteaves 1906 [synonym], Loxoplocus hespelerensis Whiteaves 1884 [synonym], Loxoplocus infidelis Perner 1903 [synonym], Loxoplocus luomianensis Xi and Yu 1990 [synonym], Loxoplocus rarissimus Perner 1903 [synonym], Loxoplocus vostokovae Kurushin 1986 [synonym]
†Loxoplocus hyacinthensis Foerste 1924
†Loxoplocus nelsonae Peel 1975
†Loxoplocus sedgwicki Donald 1906
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Invalid names: Loxoplocus esthona Koken and Perner 1925 [synonym], Loxoplocus trilineata Pitcher 1939 [synonym], Loxoplocus turbinoides Koken and Perner 1925 [synonym]
†Loxoplocus silurica d'Eichwald 1840
†Loxoplocus soluta Whiteaves 1884
†Loxoplocus vermetus Koken 1897
Invalid names: Eoworthenia Frýda 1998 [synonym], Kiviasukkaan Peel 1975 [synonym]
G. †Luciella de Koninck 1883
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†Luciella alata Sandberger and Sandberger 1855
†Luciella eliana de Koninck 1844
†Luciella praecursor Perner 1907
G. †Luciellina Kittl 1900
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†Luciellina ocultabanda Kues and Batten 2001
†Luciellina squamula Phillips 1836
G. †Lunulazona Sadlick and Nielsen 1963
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†Lunulazona costata Sadlick and Nielsen 1963
†Lunulazona nodomarginata McChesney 1861
†Lunulazona sablei Yochelson and Dutro 1963
†Lunulazona springeri Lane et al. 1973
G. †Marmolatella Kittl 1894
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†Marmolatella ambiguus Weir 1925
†Marmolatella ampliata Phillips 1836
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Invalid names: Marmolatella spirata de Sowerby and Murchison 1839 [synonym]
†Marmolatella sigaretiformis de Koninck 1881
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Invalid names: Marmolatella ermani Murchison et al. 1845 [synonym]
†Marmolatella subovata Meek and Worthen 1873
G. †Mesocoelia Perner 1907
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†Mesocoelia delicata Perner 1907
†Mesocoelia discrepans Perner 1907
†Mesocoelia gregaria Ruedemann 1916
†Mesocoelia iners Perner 1907
†Mesocoelia janus Perner 1907
†Mesocoelia libera Perner 1907
†Mesocoelia obstipisutura Linsley 1968
†Mesocoelia priscum Münster 1840
†Mesocoelia quarki Tassell 1982
†Mesocoelia suspecta Perner 1907
†Mesocoelia terebrans Perner 1907
G. †Michelia Roemer 1855
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†Michelia compacta Hall 1859
†Michelia cylindrica Roemer 1855
†Michelia darwini de Koninck 1876
†Michelia planogyrata Hall 1859
†Michelia tenera Perner 1907
†Michelia tenue Clarke 1907
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Invalid names: Michelia tenuella Williams and Breger 1916 [synonym]
†Michelia whiteavesi Clarke and Ruedemann 1903
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Invalid names: Michelia attenuata Lindström 1884 [replaced]
G. †Micrentoma Donald 1898
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†Micrentoma nana de Koninck 1881
†Micrentoma yunnanensis Mansuy 1919
G. †Microdoma Meek and Worthen 1867
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†Microdoma angulata Yoo 1988
†Microdoma tricarinatus Sherzer and Grabau 1910
G. †Mourlonia de Koninck 1883
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†Mourlonia agassizi de Koninck 1883
†Mourlonia apicalis Hall 1876
†Mourlonia broondensis Tolmachoff 1930
†Mourlonia broondensis Tolmachoff 1930
†Mourlonia carinata Sowerby 1813
†Mourlonia filitexta Hall 1876
†Mourlonia globosa Holzapfel 1882
†Mourlonia guestphalica Koken 1889
†Mourlonia italica Spitz 1907
†Mourlonia macrostoma Sandberger and Sandberger 1853
†Mourlonia missouriensis Weller 1906
†Mourlonia nigra Koken 1889
†Mourlonia pisa de Koninck 1883
†Mourlonia plena Hall 1876
†Mourlonia reloba Yochelson and Dutro 1960
†Mourlonia rugulata Hall 1860
†Mourlonia striata Sowerby 1815
†Mourlonia subzona Rollins et al. 1971
†Mourlonia teichertensis Cook et al. 2003
†Mourlonia tenuiarata Sandberger and Sandberger 1853
†Mourlonia tenuilineata Holzapfel 1882
†Mourlonia textus Hyde 1953
†Mourlonia turbinea Sandberger and Sandberger 1855
†Mourlonia vicinalis Koken 1889
G. †Naticonema Perner 1903
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†Naticonema kauffmani Peel 1975
†Naticonema similare Perner 1903
G. †Naticopsis M'Coy 1844
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†Naticopsis ableptis Batten 1974
†Naticopsis americana Girty 1915
†Naticopsis apollinis Perner 1907
†Naticopsis bowsheri Blodgett 1992
†Naticopsis carleyana Hall 1856
†Naticopsis carlyana Hall 1856
†Naticopsis chesterensis Swallow 1863
†Naticopsis comperta Hall 1879
†Naticopsis confusa Perner 1903
†Naticopsis consobrina Perner 1903
†Naticopsis convoluta Heidelberger 2001
†Naticopsis cretacea Hall and Whitfield 1873
†Naticopsis deformis Girty 1909
†Naticopsis depressa Winchell 1863
†Naticopsis efossa Goldfuss 1844
†Naticopsis errans Perner 1903
†Naticopsis eruca Perner 1907
†Naticopsis hallii Whidborne 1892
†Naticopsis inornata Whiteaves 1892
†Naticopsis inornata Walcott 1884
†Naticopsis insculpta Perner 1903
†Naticopsis irregularis Perner 1903
†Naticopsis judithae Knight 1933
†Naticopsis kaibabensis Chronic 1952
†Naticopsis kayseri Holzapfel 1895
†Naticopsis laeta Perner 1903
†Naticopsis levis Meek 1873
†Naticopsis manitobensis Whiteaves 1892
†Naticopsis marginata Römer 1843
†Naticopsis mariona Thein and Nitecki 1974
†Naticopsis marthaae Knight 1933
†Naticopsis microtricha Römer 1843
†Naticopsis minuta Tolmachoff 1930
†Naticopsis naticaeformis Karczewski 1989
†Naticopsis nexicosta Phillips 1841
†Naticopsis opimavoluta Linsley 1968
†Naticopsis osbornei Yoo 1988
†Naticopsis pegmihumerosa Linsley 1968
†Naticopsis phillipsi M'Coy 1844
†Naticopsis planifrons Linsley 1968
†Naticopsis plebeia Perner 1903
†Naticopsis plena Perner 1903
†Naticopsis plicatula Perner 1903
†Naticopsis primigenia d'Eichwald 1859
†Naticopsis protei Goldfuss 1844
†Naticopsis protogaea Goldfuss 1844
†Naticopsis purpura Römer 1850
†Naticopsis remex White 1876
†Naticopsis ruchholzi Gischler et al. 2004
†Naticopsis scintilla Girty 1915
†Naticopsis semistriata Münster 1840
†Naticopsis sirodoti Munier-Chalmas 1876
†Naticopsis suturicompta Yochelson and Dutro 1960
†Naticopsis taemasensis Tassell 1982
†Naticopsis trevorpaticiciorum Peel 1975
†Naticopsis tumescens Perner 1903
†Naticopsis velox Perner 1903
†Naticopsis waageni Gemmellaro 1889
†Naticopsis wakehami Clarke 1908
†Naticopsis waterlooensis Weller 1916
G. †Neilsonia Thomas 1940
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†Neilsonia insculpta Hall 1856
†Neilsonia invisitata Hoare et al. 1997
†Neilsonia laticincta Batten 1989
†Neilsonia uninodocarinata Hyde 1953
†Neilsonia welleri Thein and Nitecki 1974
G. †Nodonema Linsley 1968
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†Nodonema clathratulum Whiteaves 1892
†Nodonema granulatum Linsley 1968
G. †Nodospira Yochelson and Dutro 1960
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†Nodospira ornata Yochelson and Dutro 1960
G. †Orthonychia Hall 1843
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†Orthonychia aculeata Barrois 1889
†Orthonychia acuta Roemer 1856
†Orthonychia baldwini Rohr et al. 1981
†Orthonychia belli Clarke 1908
†Orthonychia bowsheri Yochelson 1956
†Orthonychia campanulata Barrois 1889
†Orthonychia chesterense Meek and Worthen 1867
†Orthonychia concavum Hall 1859
†Orthonychia conicum Hall 1859
†Orthonychia conoidea Goldfuss 1844
†Orthonychia cornuforme Winchell 1863
†Orthonychia costata Barrois 1889
†Orthonychia daschi Rohr and Smith 1978
†Orthonychia dentalium Hall 1862
†Orthonychia dubium Barrois 1889
†Orthonychia egorovi Mazaev 1996
†Orthonychia extensum Barrois 1889
†Orthonychia herzeri Winchell 1871
†Orthonychia inequilaterale Barrois 1889
†Orthonychia infabricatus Hyde 1953
†Orthonychia marblecreekensis Talent and Philip 1956
†Orthonychia obliquesulcata Spitz 1907
†Orthonychia parva Shumard and Swallow 1858
†Orthonychia parvulum Whiteaves 1892
†Orthonychia pentalvea Talent and Philip 1956
†Orthonychia perplexum Hall 1879
†Orthonychia prosseri Clarke and Swartz 1913
†Orthonychia protei Oehlert 1883
†Orthonychia puellaris Whidborne 1891
†Orthonychia quadrangularis Whidborne 1891
†Orthonychia rostratus Trenkner 1868
†Orthonychia rotunda Whidborne 1896
†Orthonychia sciotoensis Hyde 1953
†Orthonychia sileni Oehlert 1883
†Orthonychia spinigerum Worthen 1883
†Orthonychia subrectum Hall 1859
†Orthonychia tortuosa Hall 1859
†Orthonychia trigonale Barrois 1889
†Orthonychia trirotundolobatum Talent and Philip 1956
†Orthonychia undulatum Barrois 1889
†Orthonychia unguiculata Clarke and Swartz 1913
†Orthonychia variablis Tyler 1965
†Orthonychia waverlyensis Hyde 1953
G. †Ostioma Tassell 1980
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†Ostioma albanica Tassell 1980
†Ostioma bloomfieldia Tassell 1980
G. †Paragoniozona Nelson 1947
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†Paragoniozona granulostriata Meek and Worthen 1860
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Invalid names: Pleurotomaria aspera Girty 1934 [replaced]
†Paragoniozona multilirata Nelson 1947
†Paragoniozona nodolirata Nelson 1947
G. †Paraliospira Rohr 1980
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†Paraliospira eugenia Billings 1865
†Paraliospira gradata Rohr 1980
†Paraliospira helena Billings 1860
†Paraliospira larvata Salter 1859
†Paraliospira mundula Ulrich and Scofield 1897
†Paraliospira parva Wilson 1938
†Paraliospira planata Rohr 1980
†Paraliospira rugata Ulrich and Scofield 1897
†Paraliospira rupestris Koken and Perner 1925
†Paraliospira supracingulata Billings 1857
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Invalid names: Eotomaria plana Wilson 1951 [synonym]
G. †Pernericirrus Frýda 1997
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†Pernericirrus aberrans Koken 1889
†Pernericirrus sinistorus Perner 1907
G. †Phanerotrema Fischer 1885
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†Phanerotrema australis Etheridge 1891
†Phanerotrema axion Hall 1868
†Phanerotrema balteata Phillips 1841
†Phanerotrema cailliaudi Barrois 1889
†Phanerotrema calliaudi Barrois 1889
†Phanerotrema communis Billings 1866
†Phanerotrema consimilis Perner 1907
†Phanerotrema dolium Lindström 1884
†Phanerotrema grimburgi Frech 1894
†Phanerotrema jugosum Huxley and Etheridge 1865
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Invalid names: Phanerotrema mcoyi Longstaff 1924 [synonym]
†Phanerotrema labrosa Hall 1859
†Phanerotrema lindstroemi Boucot et al. 1967
†Phanerotrema occidens Hall 1867
†Phanerotrema perryi Rohr and Smith 1978
†Phanerotrema volajensis Spitz 1907
G. †Phymatopleura Girty 1939
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†Phymatopleura baccata Reed 1944
†Phymatopleura heteropleura Elias 1958
†Phymatopleura nodosa Girty 1912
†Phymatopleura paraliensis Reed 1944
†Phymatopleura preclara Hoare et al. 1997
†Phymatopleura thyrrena Gemmellaro 1889
†Phymatopleura uchhaliensis Reed 1944
G. †Plagiothyra Whidborne 1892
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†Plagiothyra archon Whidborne 1889
†Plagiothyra arietinus Whidborne 1892
†Plagiothyra curlyjigga Cook 1998
†Plagiothyra isekei Heidelberger and Amler 2002
†Plagiothyra multispiralis Frýda 1998
†Plagiothyra nobilis Holzapfel 1882
†Plagiothyra purpurea d’Archiac and de Verneuil 1842
G. †Platyceras Conrad 1840
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†Platyceras ammon Hall 1862
†Platyceras angustum Phillips 1836
†Platyceras argo Hall 1862
†Platyceras attenuatum Hall 1859
†Platyceras auriculatum Hall 1876
†Platyceras billingsi Hall 1859
†Platyceras bistrami Knod 1908
†Platyceras bucculentum Hall 1862
†Platyceras callossum Hall 1859
†Platyceras canalicatum Angelin and Lindström 1880
†Platyceras carinatum Hall 1862
†Platyceras colonus Holzapfel 1895
†Platyceras columbinus Whidborne 1889
†Platyceras compressus Goldfuss 1832
†Platyceras contortus Römer 1843
†Platyceras cordatus Whidborne 1889
†Platyceras crassum Hall 1862
†Platyceras cymbium Hall 1862
†Platyceras decorum Talent and Philip 1956
†Platyceras dilatans Perner 1911
†Platyceras dilatatum Hall 1859
†Platyceras dormitans Maurer 1885
†Platyceras duriculatum Hall 1879
†Platyceras eberti Holzapfel 1895
†Platyceras echinatum Hall 1862
†Platyceras elongatum Hall 1859
†Platyceras erectum Hall 1843
†Platyceras fecundum Perner 1911
†Platyceras galeritus Whidborne 1891
†Platyceras gaspense Clarke 1908
†Platyceras gibbosum Hall 1859
†Platyceras gracilis Sandberger 1842
†Platyceras guesnini Clarke 1908
†Platyceras hainensis Maurer 1885
†Platyceras haliotis de Sowerby and Murchison 1839
†Platyceras haliotoides Meek and Worthen 1866
†Platyceras hebes Clarke 1907
†Platyceras holzapfeli Spitz 1907
†Platyceras humulus Perner 1911
†Platyceras kahlebergensis Beushausen 1884
†Platyceras laevicostatum Knod 1908
†Platyceras latum Keyes 1888
†Platyceras leboutillieri Clarke 1907
†Platyceras lejeunii Clarke 1908
†Platyceras magnificum Hall 1859
†Platyceras mansfieldense Tassell 1977
†Platyceras marylandicum Clarke and Swartz 1913
†Platyceras minutum Chapman 1916
†Platyceras multiplicatus Giebel 1858
†Platyceras nasutum Miller 1891
†Platyceras nettersheimensis Heidelberger 2003
†Platyceras niagarensis Hall 1852
†Platyceras nodosum Conrad 1841
†Platyceras oehlerti Spitz 1907
†Platyceras paralium White and Whitfield 1862
†Platyceras patelliforme Holzapfel 1895
†Platyceras pericompsus Whidborne 1891
†Platyceras platystomum Hall 1859
†Platyceras plicatile Hall 1879
†Platyceras priscum Goldfuss 1844
†Platyceras pulcherrimum Rowley 1908
†Platyceras reflexum Hall 1859
†Platyceras richtum Hall 1879
†Platyceras rictum Hall 1862
†Platyceras robustum Hall 1859
†Platyceras sigmoidale Phillips 1841
†Platyceras sinuatum Hall 1859
†Platyceras spirale Hall 1859
†Platyceras squamosus Trenkner 1868
†Platyceras subrotundum Snider 1915
†Platyceras subumbonatum Northrop 1939
†Platyceras symmetricum Hall 1862
†Platyceras thetis Hall 1862
†Platyceras trilobatum Hall 1859
†Platyceras trojani Blodgett and Johnson 1992
†Platyceras uncinatus Roemer 1852
†Platyceras undata Hall 1859
†Platyceras unicus Hall 1879
†Platyceras ussheri Whidborne 1891
†Platyceras vetusta Sowerby 1829
†Platyceras villmarensis Basse and Heidelberger 2002
†Platyceras yochelsoni Kulas and Batten 1997
G. †Platyconus Perner 1907
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†Platyconus carinata Murchison 1839
†Platyconus pullus Perner 1903
G. †Platyloron Oehlert and Oehlert 1888
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†Platyloron bischoffii Goldfuss 1844
†Platyloron dispar Lindström 1884
†Platyloron shaleri Whidborne 1892
†Platyloron voluta Lindström 1884
G. †Platyzona Knight 1945
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†Platyzona arkansana Girty 1915
†Platyzona hespera Kues and Batten 2001
†Platyzona humilis de Koninck 1877
G. †Plethospira Ulrich and Scofield 1897
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†Plethospira cannonensis Stauffer 1937
†Plethospira cassina Whitfield 1886
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Invalid names: Plethospira subangulata Flower 1968 [synonym]
†Plethospira difficilis Whitfield 1890
†Plethospira emanuelensis Yu 1993
†Plethospira extensa Heller 1954
†Plethospira floweri Fortey and Peel 1990
Invalid names: Seelya Ulrich and Scofield 1897 [synonym]
G. †Pleurorima Perner 1907
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†Pleurorima confertinemilata Fagerstrom 1961
†Pleurorima cytherea Perner 1903
†Pleurorima famula Perner 1907
†Pleurorima hoffmannae Blodgett and Johnson 1992
†Pleurorima kayseri Clarke and Ruedemann 1903
†Pleurorima leptoconcha Perner 1907
†Pleurorima migrans Perner 1907
†Pleurorima moydartensis McLearn 1924
†Pleurorima sandbergi Koken 1889
†Pleurorima tranquilla Perner 1907
†Pleurorima wisbeyensis Lindström 1884
G. †Pleurotomaria Defrance 1826
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†Pleurotomaria bicoronata Sandberger and Sandberger 1855
†Pleurotomaria cingulata Goldfuss 1844
†Pleurotomaria pericarinata Hall 1847
Invalid names: Pleurotomaria idia Hall 1861 [nomen vanum], Pleurotomaria verticillata Webster 1906 [nomen vanum]
G. †Porcellia Léveillé 1835
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†Porcellia chesterensis Thein and Nitecki 1974
†Porcellia denayi Blodgett and Johnson 1992
†Porcellia hertzeri Hall 1876
†Porcellia nais Hall 1859
†Porcellia prolatatora Schopf and Linsley 1994
†Porcellia puzo Léveillé 1835
†Porcellia sciota Hall and Whitfield 1873
†Porcellia spinosus Goldfuss 1844
†Porcellia striata Goldfuss 1844
G. †Praenatica Perner 1903
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†Praenatica orthostoma Barrois 1889
†Praenatica proeva Perner 1903
G. †Prosolarium Perner 1903
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†Prosolarium crenulata Sedgwick and M'Coy 1855
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Invalid names: Pleurotomaria eloroidea Kindle 1903 [synonym]
†Prosolarium deiopei Billings 1865
†Prosolarium dominus Perner 1903
†Prosolarium duslii Perner 1907
†Prosolarium halei Hall 1867
†Prosolarium markhaensis Peel and Gubanov 1997
†Prosolarium platybasis Northrop 1939
†Prosolarium procerum Perner 1903
†Prosolarium scalatum Northrop 1939
†Prosolarium striatissima Reed 1901
G. †Proturritella Koken 1889
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†Proturritella bicarinata Wahlenberg 1821
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Invalid names: Gonionema angulosum Koken 1897 [synonym], Proturritella gradata Koken 1897 [synonym], Proturritella reticulata Koken 1897 [synonym]
†Proturritella cingulata Koken 1896
†Proturritella cyclophora Koken and Perner 1925
†Proturritella gracilis Koken 1889
†Proturritella historicum Hudson 1905
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Invalid names: Proturritella altisulcatum Hudson 1905 [synonym], Proturritella epitome Hudson 1905 [synonym], Proturritella normaliana Raymond 1905 [synonym]
†Proturritella microclathrata Hudson 1905
G. †Pseudotectus Perner 1903
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†Pseudotectus annae Frech 1894
†Pseudotectus conspicuus Spitz 1907
†Pseudotectus immersus Perner 1903
†Pseudotectus scupini Spitz 1907
G. †Ptychospirina Perner 1907
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†Ptychospirina senaria Perner 1907
†Ptychospirina varians Hall 1876
G. †Pycnotrochus Perner 1903
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†Pycnotrochus christiei Peel 1984
†Pycnotrochus prosper Perner 1903
†Pycnotrochus viator Perner 1903
G. †Ruedemannia Foerste 1914
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†Ruedemannia aberrans Perner 1903
†Ruedemannia borkholmiensis Koken 1896
†Ruedemannia cognata Perner 1903
†Ruedemannia crassior Perner 1903
†Ruedemannia fristschi Perner 1903
†Ruedemannia holmi Lindström 1884
†Ruedemannia humilis Ulrich and Scofield 1897
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Invalid names: Lophospira belli Foerste 1924 [synonym], Rudemannia lineata Bradley 1930 [synonym]
†Ruedemannia instabilis Donald 1906
†Ruedemannia lirata Ulrich and Scofield 1897
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Invalid names: Ruedemannia aista Koken 1896 [synonym], Ruedemannia breviangulata Secrist and Evitt 1943 [synonym], Ruedemannia prisca Koken and Perner 1925 [synonym]
†Ruedemannia robusta Lindström 1884
†Ruedemannia sodalis Koken 1897
†Ruedemannia striatula Perner 1907
†Ruedemannia subrobusta Perner 1907
†Ruedemannia tolli Koken 1897
G. †Salterospira Batten 1966
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†Salterospira chesterensis Meek and Worthen 1860
†Salterospira okawensis Thein and Nitecki 1974
†Salterospira plectata Batten 1966
†Salterospira tabulata Batten 1966
G. †Scalaetrochus Etheridge 1890
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†Scalaetrochus fragosus Linsley 1968
†Scalaetrochus lindstroemi Etheridge 1890
†Scalaetrochus sinensis Pan and Cook 2003
†Scalaetrochus stachei Spitz 1907
†Scalaetrochus subalatus de Verneuil 1850
†Scalaetrochus tectiformis Whiteaves 1892
†Scalaetrochus vilis Spitz 1907
G. †Schizopea Butts 1926
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†Schizopea abrupta Ulrich et al. 1931
†Schizopea dubia Ulrich et al. 1931
†Schizopea elevata Ulrich et al. 1931
†Schizopea grandis Ulrich et al. 1931
†Schizopea normalis Ulrich et al. 1931
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Invalid names: Dirhachopea corrugata Ulrich et al. 1931 [synonym], Schizopea intermedia Ulrich et al. 1931 [synonym]
†Schizopea primordialis Winchell 1864
†Schizopea subrotunda Ulrich et al. 1931
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Invalid names: Schizopea appressa Ulrich et al. 1931 [synonym]
†Schizopea transitans Ulrich et al. 1931
†Schizopea wanwanensis Kobayashi 1933
†Schizopea wanwankouensis Yü and Yochelson 1999
†Schizopea washburnei Butts 1926
G. †Semitubina Cossmann 1918
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†Semitubina sakoi Kase 1986
†Semitubina yukonensis Blodgett et al. 2001
G. †Shansiella Yin 1932
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†Shansiella beckwithana McChesney 1859
†Shansiella broadheadi White 1880
†Shansiella canaliculatus Römer 1843
†Shansiella carbonaria Norwood and Pratten 1855
†Shansiella planicostata Girty 1937
G. †Sinuopea Ulrich 1911
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†Sinuopea advena Winchell 1864
†Sinuopea basiplanata Ulrich et al. 1931
†Sinuopea cingulata Ulrich et al. 1931
†Sinuopea emminencis Ulrich et al. 1931
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Invalid names: Taeniospira naticoides Flower 1968 [synonym]
†Sinuopea parva Cleland 1900
†Sinuopea stclairi Ulrich et al. 1931
†Sinuopea vera Ulrich et al. 1931
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Invalid names: Sinuopea umbilicata Ulrich et al. 1931 [synonym]
Invalid names: Taeniospira Ulrich et al. 1931 [synonym]
G. †Spiroscala Knight 1945
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†Spiroscala acuminata Thomas 1940
†Spiroscala conoides Meek and Worthen 1867
†Spiroscala decorata Hoare et al. 1997
†Spiroscala georgiannae Kues and Batten 2001
†Spiroscala intricata Batten 1966
†Spiroscala pagoda Knight 1945
†Spiroscala rockymontana Girty 1934
†Spiroscala solida Hyde 1953
G. †Stegocoelia Donald 1889
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†Stegocoelia compacta Donald 1889
†Stegocoelia kentuckiensis Thein and Nitecki 1974
†Stegocoelia longissima Whidborne 1896
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Invalid names: Hypergonia gracilis Goldfuss 1844 [synonym]
†Stegocoelia nodosa Yoo 1988
†Stegocoelia okawensis Thein and Nitecki 1974
†Stegocoelia quadricincta Winchell 1863
†Stegocoelia quinquecostata Yin 1932
†Stegocoelia smithiana Donald 1895
†Stegocoelia variabilis Donald 1895
G. †Straparollina Billings 1865
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†Straparollina anceps Koken and Perner 1925
†Straparollina asperostriata Billings 1860
†Straparollina atavus Koken and Perner 1925
†Straparollina basicarinata Cullison 1938
†Straparollina cassina Whitfield 1886
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Invalid names: Lophospira corrugata Cullison 1938 [synonym], Lophospira dutchtownensis Cullison 1938 [synonym], Lophospira grandis Butts 1926 [synonym]
†Straparollina circe Billings 1860
†Straparollina eurydice Billings 1860
†Straparollina gregaria Billings 1859
†Straparollina holtedahli Strand 1932
†Straparollina hudsoni Raymond 1905
†Straparollina infida Perner 1903
†Straparollina martinensis Rohr 1996
†Straparollina minima Whitfield 1897
†Straparollina nitida Koken and Perner 1925
†Straparollina norvegicus Koken and Perner 1925
†Straparollina pelagica Billings 1865
†Straparollina procris Billings 1865
†Straparollina smoeleni Holtedahl 1915
†Straparollina turgida Hall 1847
G. †Strophostylus Hall 1859
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†Strophostylus andrewsi Hall 1859
†Strophostylus cancellata Hall 1847
†Strophostylus chesterensis Thein and Nitecki 1974
†Strophostylus elegans Hall 1859
†Strophostylus fitchi Hall 1859
†Strophostylus girtyi Knight 1934
†Strophostylus matheri Hall 1859
†Strophostylus obtusus Hall 1859
†Strophostylus transversus Hall 1859
†Strophostylus unica Hall 1862
†Strophostylus wortheni Weller 1916
G. †Taemasotrochus Tassell 1982
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†Taemasotrochus giganticus Tassell 1982
†Taemasotrochus nodosa Pan and Cook 2003
G. †Taosia Girty 1939
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†Taosia copei White 1881
†Taosia dozierensis Beede 1907
†Taosia mongolica Grabau 1931
†Taosia wortheni Knight 1942
G. †Tapinotomaria Batten 1956
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†Tapinotomaria psiche Gemmellaro 1889
†Tapinotomaria spinosa Batten 1966
G. †Trachydomia Meek and Worthen 1866
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†Trachydomia nodosa Meek and Worthen 1860
†Trachydomia oweni Knight 1933
†Trachydomia raymondi Sturgeon 1964
†Trachydomia turbonitella Batten 1995
†Trachydomia whitei Knight 1933
G. †Trochonema Salter 1859
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†Trochonema beachi Whitfield 1878
†Trochonema bellulum Ulrich and Scofield 1897
†Trochonema beloitense Whitfield 1878
†Trochonema biangulata Hall 1847
†Trochonema coxi Wilson 1938
†Trochonema eccentricum Ulrich and Scofield 1897
†Trochonema fragile Ulrich and Scofield 1897
†Trochonema liljevalli Rohr 1980
†Trochonema madisonense Ulrich and Scofield 1897
†Trochonema minnesotensis Ladd 1925
†Trochonema minus Koken 1897
†Trochonema panderi Koken 1896
†Trochonema peraltum Koken 1897
†Trochonema retrorsum Ulrich and Scofield 1897
†Trochonema rugosa Ulrich and Scofield 1897
†Trochonema schmidti Koken 1897
†Trochonema trochonemoides Ulrich and Scofield 1897
†Trochonema umbilicata Hall 1847
†Trochonema vagrans Ulrich and Scofield 1897
†Trochonema valenticum Pitcher 1939
†Trochonema vittatum Koken and Perner 1925
G. †Trochonemella Okulitch 1935
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†Trochonemella arachne Billings 1865
†Trochonemella churkini Rohr and Blodgett 1985
†Trochonemella knoxvillensis Ulrich and Scofield 1897
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Invalid names: Trochonemella rectangulare Raymond 1905 [synonym]
†Trochonemella mikulici Rohr 1980
†Trochonemella montrealensis Okulitch 1935
†Trochonemella notablis Ulrich and Scofield 1897
†Trochonemella reusingi Rohr 1988
G. †Tubina Owen 1859
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†Tubina armata Owen 1859
†Tubina geyeri Frech 1894
†Tubina knighti Horný 1992
G. †Tubomphalus Perner 1903
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†Tubomphalus crenistria Perner 1903
†Tubomphalus elatus Perner 1903
†Tubomphalus emergens Perner 1903
†Tubomphalus inflatus Perner 1907
G. Turbo Linnaeus 1758
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†Turbo torosus Kirchner 1915
†Turbo zonatus Kirchner 1915
Invalid names: Turbo guadalupensis Shumard 1859 [nomen nudum]
G. †Turbonitella de Koninck 1881
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†Turbonitella biserialis Phillips 1836
†Turbonitella fraterna Perner 1903
†Turbonitella humilis Perner 1903
†Turbonitella ovoides Perner 1903
†Turbonitella primula Perner 1903
†Turbonitella proligera Perner 1903
†Turbonitella pusilla Perner 1903
†Turbonitella semisulcatus Phillips 1836
†Turbonitella strialata Römer 1843
†Turbonitella trunculinoda Linsley 1968
†Turbonitella turberculata Kirchner 1915
†Turbonitella ussheri Whidborne 1891
G. †Turbonopsis Grabau and Shimer 1909
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†Turbonopsis apachiensis Day and Beus 1982
†Turbonopsis coronola Clarke and Swartz 1913
†Turbonopsis hackberryensis Webster 1906
†Turbonopsis shumardii Hall 1879
†Turbonopsis spiculatus Fenton and Fenton 1924
G. †Umbospira Perner 1903
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†Umbospira nigricans Perner 1903
†Umbospira yochelsoni Peel 1977
G. †Visitator Perner 1911
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†Visitator cylindricum Talent and Philip 1956
†Visitator extraneus Perner 1911
G. †Wellergyi Thein and Nitecki 1974
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†Wellergyi brazerianum Girty 1927
†Wellergyi chesterensis Thein and Nitecki 1974
†Wellergyi dunlopi Thomas 1940
†Wellergyi subdecussatus Geinitz 1866
G. †Westerna Webster 1905
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G. †Worthenia de Koninck 1883
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†Worthenia constantini Mansuy 1912
†Worthenia corrugata Chronic 1952
†Worthenia crenilunula Yoo 1994
†Worthenia legrandi Kues and Batten 2001
†Worthenia parvula Hoare et al. 1997
†Worthenia sculpta Phillips 1836
†Worthenia speciosa Meek and Worthen 1860
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Invalid names: Worthenia perizomata White 1881 [synonym]
†Worthenia strigillata Herrick 1888
†Worthenia tabulata Conrad 1835
†Worthenia tongxinensis Guo 1983
G. †Yunnania Mansuy 1912
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†Yunnania minor de Koninck 1881
†Yunnania parallela Phillips 1836
G. †Bucanospira Ulrich and Scofield 1897
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†Bucanospira contexta Perner 1903
†Bucanospira expansa Ulrich and Scofield 1897
†Bucanospira fractum Perner 1903
†Bucanospira tuba Perner 1903
G. †Craspedostoma Lindström 1884
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†Craspedostoma elegantulum Lindström 1884
†Craspedostoma filistriatum Lindström 1884
†Craspedostoma fugitivum Perner 1907
†Craspedostoma glabrum Lindström 1884
†Craspedostoma involutum Lindström 1884
†Craspedostoma spinulosum Lindström 1884
†Craspedostoma tuba Perner 1903
G. †Scoliostoma Braun 1838
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†Scoliostoma dannenbergi Braun 1838
†Scoliostoma expansilabrum Sandberger and Sandberger 1853
G. †Spirina Kayser 1889
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†Spirina brilonensis Kayser 1889
†Spirina patula Perner 1903
†Spirina symmetrica Perner 1907
G. †Temnospira Perner 1903
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†Temnospira monile Perner 1903
†Temnospira percinctum Perner 1903
G. †Umbonellina Koken and Perner 1925
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†Umbonellina infrasilurica Koken and Perner 1925
G. †Aulacostrepsis Perner 1907
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†Aulacostrepsis carinthiaca Jhaveri 1969
†Aulacostrepsis simplex Perner 1907
G. †Auriptygma Perner 1903
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†Auriptygma bulimina Lindström 1884
†Auriptygma dunkeri Holzapfel 1882
†Auriptygma fenestrata Lindström 1884
†Auriptygma minuta Frýda and Manda 1997
Invalid names: Chuchlina Frýda and Manda 1997 [synonym]
G. †Bulimorpha Whitfield 1882
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†Bulimorpha bulimiformis Hall 1858
†Bulimorpha elegans Girty 1927
†Bulimorpha elongata Hall 1858
†Bulimorpha minor Thein and Nitecki 1974
†Bulimorpha whitfieldi Weller 1916
G. †Callispira Nelson 1947
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†Callispira grossa Hoare et al. 1997
†Callispira novemcostata Nelson 1947
†Callispira quinquecostata Nelson 1947
G. †Ceraunocochlis Knight 1931
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†Ceraunocochlis australis Yoo 1994
†Ceraunocochlis blatta Knight 1931
†Ceraunocochlis fulminula Knight 1931
†Ceraunocochlis gracilis Mansuy 1914
†Ceraunocochlis subulata Hoare et al. 1997
†Ceraunocochlis tenuis Yoo 1994
G. †Clathronema Blodgett 1992
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†Clathronema batteni Blodgett and Johnson 1992
†Clathronema cancellata Cleland 1911
†Clathronema cingulata Whiteaves 1892
†Clathronema cloughi Blodgett 1992
†Clathronema reticulata Phillips 1841
†Clathronema striatus d'Eichwald 1860
G. †Cyclozyga Knight 1930
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†Cyclozyga attenuata Hoare and Sturgeon 1978
†Cyclozyga micra Beus 1978
†Cyclozyga mirabilis Knight 1930
†Cyclozyga sinusigera Yoo 1988
G. †Cylindritopsis Gemmellaro 1889
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†Cylindritopsis insolitus Chronic 1952
†Cylindritopsis vaningeni Knight 1931
G. †Cyrtospira Ulrich and Scofield 1897
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†Cyrtospira abbreviatus Hall 1852
†Cyrtospira aequalis Koken and Perner 1925
†Cyrtospira bicurvata Ulrich and Scofield 1897
†Cyrtospira brevis Winchell and Marcy 1866
†Cyrtospira directus Foerste 1893
†Cyrtospira funata Perner 1903
†Cyrtospira granum Koken and Perner 1925
†Cyrtospira huenei Koken and Perner 1925
†Cyrtospira inexpectata Perner 1903
†Cyrtospira lineatus Koken and Perner 1925
†Cyrtospira nitens Angelin and Lindström 1880
†Cyrtospira notata Billings 1866
†Cyrtospira ornatus Koken and Perner 1925
†Cyrtospira parvula Billings 1865
†Cyrtospira raymondi Hudson 1905
†Cyrtospira tortilis Ulrich and Scofield 1897
†Cyrtospira ventricosus Hall 1852
†Cyrtospira wykoffensis Ulrich and Scofield 1897
G. †Devonozyga Horný 1955
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†Devonozyga arduum Kirchner 1915
†Devonozyga conicum Whidborne 1891
†Devonozyga diversicostata Horný 1955
†Devonozyga multiplicata Römer 1850
†Devonozyga perneri Horný 1955
†Devonozyga scalariaeforme Holzapfel 1882
G. †Eoptychia Longstaff 1933
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†Eoptychia abbreviata de Koninck 1881
†Eoptychia carinimaxima Wang 1987
G. †Helminthozyga Knight 1930
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†Helminthozyga costellata Hoare and Sturgeon 1978
†Helminthozyga undulata Hoare and Sturgeon 1978
G. †Hemizyga Girty 1915
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†Hemizyga attenuata Hoare and Sturgeon 1980
†Hemizyga dubia Girty 1915
†Hemizyga elegans Girty 1915
†Hemizyga grandicostata Girty 1915
†Hemizyga illineata Knight 1930
†Hemizyga inflata Knight 1930
†Hemizyga larga Kues and Batten 2001
G. †Hyphantozyga Knight 1930
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†Hyphantozyga fenestrata Hoare and Sturgeon 1980
†Hyphantozyga filicosta Hoare 1961
†Hyphantozyga fusiforma Hoare and Sturgeon 1980
†Hyphantozyga gracilis Knight 1930
†Hyphantozyga grandis Hoare and Sturgeon 1980
†Hyphantozyga granifera de Koninck 1876
†Hyphantozyga knighti Hoare and Sturgeon 1980
†Hyphantozyga perattenuata Hoare and Sturgeon 1980
†Hyphantozyga pulchra Hoare and Sturgeon 1980
†Hyphantozyga textilis Hoare and Sturgeon 1980
G. †Ianthinopsis Meek and Worthen 1866
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†Ianthinopsis tumenensis Yin 1932
†Ianthinopsis tumida Meek and Worthen 1861
G. †Katoptychia Perner 1907
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†Katoptychia alba Perner 1907
†Katoptychia enantiomorpha Frech 1894
†Katoptychia fugitiva Perner 1907
†Katoptychia hallii Whidborne 1896
†Katoptychia holynensis Frýda and Bandel 1997
G. †Knightella Longstaff 1933
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†Knightella gundyensis Yoo 1994
†Knightella shumardiana Winchell 1863
G. †Loxonema Phillips 1841
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†Loxonema acicularis Roemer 1855
†Loxonema acuminatum Goldfuss 1832
†Loxonema bellona Hall 1876
†Loxonema benevolum Perner 1907
†Loxonema beraunense Perner 1903
†Loxonema bongardia Heidelberger 2001
†Loxonema boydii Hall 1843
†Loxonema carinatum Kirchner 1915
†Loxonema coapta Hall 1876
†Loxonema cornubicum Longstaff 1909
†Loxonema crispa Lindström 1884
†Loxonema dalecarlicum Angelin and Lindström 1880
†Loxonema danai Clarke 1904
†Loxonema debile Perner 1903
†Loxonema deornatum de Koninck 1881
†Loxonema derelictum Perner 1903
†Loxonema fasciatum Lindström 1884
†Loxonema fecundum de Koninck 1881
†Loxonema fragillima Perner 1907
†Loxonema grayianum Longstaff 1909
†Loxonema hibernicum Longstaff 1909
†Loxonema highlandense Clarke 1909
†Loxonema hydraulica Hall and Whitfield 1872
†Loxonema inclytum Perner 1907
†Loxonema inexpectatum Perner 1903
†Loxonema infrasilurica Koken and Perner 1925
†Loxonema kayseri Holzapfel 1895
†Loxonema laeve Römer 1850
†Loxonema ledburiense Longstaff 1909
†Loxonema leviusulcum de Koninck 1881
†Loxonema lindstroemi Longstaff 1909
†Loxonema magnum Whitfield 1878
†Loxonema megaspirae Karczewski 1989
†Loxonema murrayana Salter 1859
†Loxonema ningxiaensis Pan 1997
†Loxonema nitida Longstaff 1924
†Loxonema obsoleta de Sowerby and Murchison 1839
†Loxonema parvula Perner 1903
†Loxonema paucicostatum Kirchner 1915
†Loxonema perlonga Perner 1907
†Loxonema perneri Longstaff 1909
†Loxonema pikensis Hyde 1953
†Loxonema planatum Longstaff 1909
†Loxonema plasi Horný 1953
†Loxonema pollens Perner 1903
†Loxonema polonica Gürich 1896
†Loxonema postremum Hall 1883
†Loxonema praecedens Perner 1903
†Loxonema praeteritum Longstaff 1909
†Loxonema propinquum Perner 1907
†Loxonema rectangulare Spitz 1907
†Loxonema reedi Longstaff 1909
†Loxonema renellaeformis Römer 1843
†Loxonema rugosum Billings 1857
†Loxonema septentrionale Koken and Perner 1925
†Loxonema sinuosum de Sowerby and Murchison 1839
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Invalid names: Loxonema acuminatum Perner 1907 [synonym]
†Loxonema solida Hall 1859
†Loxonema solvens Perner 1907
†Loxonema spurium de Koninck 1881
†Loxonema strangulatum Lindström 1884
†Loxonema subattenuata Hall 1859
†Loxonema subconvexa Yü 1961
†Loxonema walcotti Blodgett and Johnson 1992
†Loxonema wetzlariana Heidelberger 2001
†Loxonema winnipegense Whiteaves 1893
Invalid names: Loxonema inconspicuum Girty 1908 [nomen dubium]
G. †Meekospira Ulrich and Scofield 1897
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†Meekospira bambooformis Thein and Nitecki 1974
†Meekospira batteni Thein and Nitecki 1974
†Meekospira delgada Kues and Batten 2001
†Meekospira evansvillensis Thein and Nitecki 1974
†Meekospira louisvillae Hall and Whitfield 1872
†Meekospira minuta Weller 1916
†Meekospira mississippiensis Thein and Nitecki 1974
†Meekospira peracuta Meek and Worthen 1860
G. †Microptychis Longstaff 1912
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†Microptychis cerithiformis Meek and Worthen 1860
†Microptychis expetendus Hoare and Sturgeon 1981
†Microptychis insolita Kues 2002
†Microptychis occabus Hoare and Sturgeon 1981
†Microptychis turbineus Hoare and Sturgeon 1981
G. †Orthonema Meek and Worthen 1862
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†Orthonema amissidecoris Anderson et al. 1985
†Orthonema ascensus Anderson et al. 1985
†Orthonema carbonaria Worthen 1884
†Orthonema hulusitaiensis Pan 1997
†Orthonema inornatum Knight 1934
†Orthonema nebrascense Geinitz 1866
†Orthonema salteri Meek and Worthen 1860
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Invalid names: Orthonema conica Meek and Worthen 1867 [synonym], Orthonema werneri Knight 1934 [synonym]
†Orthonema semiornatum Anderson et al. 1985
†Orthonema socorroense Girty 1909
†Orthonema strigatum Warthin 1930
†Orthonema subtaeniatum Geinitz 1866
†Orthonema telescopiforme Erwin 1988
Invalid names: Geolcomia Licharev 1975 [synonym]
G. †Oxyspira Blodgett and Johnson 1992
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†Oxyspira murphyi Blodgett and Johnson 1992
G. †Palaeozygopleura Horný 1955
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†Palaeozygopleura alinae Perner 1907
†Palaeozygopleura angulosum Römer 1850
†Palaeozygopleura antiqua Goldfuss 1844
†Palaeozygopleura arcuata Holzapfel 1882
†Palaeozygopleura attenuata Hall 1859
†Palaeozygopleura benniana Longstaff 1933
†Palaeozygopleura bouskai Horný 1955
†Palaeozygopleura canningensis Cook et al. 2003
†Palaeozygopleura chlupaci Frýda 1993
†Palaeozygopleura delphicola Hall 1860
†Palaeozygopleura devonicans Perner 1903
†Palaeozygopleura dodgeyi Cook and Camilleri 1997
†Palaeozygopleura funatum Roemer 1855
†Palaeozygopleura glabra Clarke and Swartz 1913
†Palaeozygopleura hamiltoniae Hall 1859
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Invalid names: Palaeozygopleura pexata Hall 1861 [synonym]
†Palaeozygopleura incurvilineatum Kirchner 1915
†Palaeozygopleura joani Linsley 1968
†Palaeozygopleura kaupii Goldfuss 1844
†Palaeozygopleura laeviusculum Hall 1879
†Palaeozygopleura lamellosa Maxwell 1961
†Palaeozygopleura laxa Hall 1879
†Palaeozygopleura lefeburii Léveillé 1835
†Palaeozygopleura missouriensis Williams 1943
†Palaeozygopleura multiplicata Clarke 1904
†Palaeozygopleura muoni Tassell 1982
†Palaeozygopleura nexile Sedgwick and Murchison 1840
†Palaeozygopleura noe Clarke 1885
†Palaeozygopleura obesa Yoo 1994
†Palaeozygopleura obliquearcuatum Sandberger and Sandberger 1855
†Palaeozygopleura parva Cox 1857
†Palaeozygopleura parvula Whitfield 1882
†Palaeozygopleura piligera Sandberger and Sandberger 1855
†Palaeozygopleura ranellaeforme Römer 1850
†Palaeozygopleura rectistriatum Hall 1879
†Palaeozygopleura redensis Longstaff 1933
†Palaeozygopleura roemeri Kayser 1878
†Palaeozygopleura sandbergi Holzapfel 1895
†Palaeozygopleura scalaroides Phillips 1836
†Palaeozygopleura sibleyensis Linsley 1968
†Palaeozygopleura sicula Hall 1879
†Palaeozygopleura styliola Hall 1876
†Palaeozygopleura tenuicostata Horný 1955
†Palaeozygopleura tenuisulcata Sandberger and Sandberger 1854
†Palaeozygopleura terebra Hall 1879
†Palaeozygopleura venusta Thein and Nitecki 1974
†Palaeozygopleura verticalis Perner 1907
†Palaeozygopleura vesna Horný 1955
†Palaeozygopleura vostokovae Vostokova 1961
†Palaeozygopleura welleri Thein and Nitecki 1974
†Palaeozygopleura wortheni Weller 1916
G. †Pseudozygopleura Knight 1930
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†Pseudozygopleura acuminata Knight 1930
†Pseudozygopleura angustata Hoare and Sturgeon 1985
†Pseudozygopleura assertonsoris Knight 1930
†Pseudozygopleura baltea Hoare and Sturgeon 1985
†Pseudozygopleura cirritus Hoare and Sturgeon 1985
†Pseudozygopleura condrai Knight 1930
†Pseudozygopleura contractus Hoare and Sturgeon 1981
†Pseudozygopleura deloi Knight 1930
†Pseudozygopleura eximia Hoare and Sturgeon 1985
†Pseudozygopleura funis Knight 1930
†Pseudozygopleura girtyi Knight 1930
†Pseudozygopleura gradatus Hoare and Sturgeon 1981
†Pseudozygopleura irrugata Hoare and Sturgeon 1985
†Pseudozygopleura kellettae Knight 1930
†Pseudozygopleura knighti Yochelson 1962
†Pseudozygopleura lanceolatus Hoare and Sturgeon 1981
†Pseudozygopleura lefebvrei Léveillé 1835
†Pseudozygopleura limus Hoare and Sturgeon 1981
†Pseudozygopleura macra Knight 1930
†Pseudozygopleura moorei Knight 1930
†Pseudozygopleura mucronatus Hoare and Sturgeon 1981
†Pseudozygopleura palus Hoare and Sturgeon 1981
†Pseudozygopleura pandus Hoare and Sturgeon 1981
†Pseudozygopleura perversa Knight 1930
†Pseudozygopleura plummeri Knight 1930
†Pseudozygopleura pluricostata Knight 1930
†Pseudozygopleura pugonis Hoare and Sturgeon 1981
†Pseudozygopleura pulchra Knight 1930
†Pseudozygopleura pupa Knight 1930
†Pseudozygopleura rectus Hoare and Sturgeon 1981
†Pseudozygopleura restis Knight 1930
†Pseudozygopleura schucherti Knight 1930
†Pseudozygopleura scitula Meek and Worthen 1860
†Pseudozygopleura scruposus Hoare and Sturgeon 1981
†Pseudozygopleura sinuosior Knight 1930
†Pseudozygopleura smithiana Longstaff 1933
†Pseudozygopleura subclathrata Römer 1843
†Pseudozygopleura subulatus Hoare and Sturgeon 1981
†Pseudozygopleura tenuivirga Knight 1930
†Pseudozygopleura variegata Hoare and Sturgeon 1985
†Pseudozygopleura yandellana Hall 1856
G. †Soleniscus Meek and Worthen 1860
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†Soleniscus altonensis McChesney 1865
†Soleniscus callosus Yoo 1988
†Soleniscus glaber Cumings 1906
†Soleniscus gracilis Cox 1857
†Soleniscus hamiltoniae Hall 1860
†Soleniscus humilis Keyes 1888
†Soleniscus kansaensis Shumard and Swallow 1858
†Soleniscus klipparti Meek 1871
†Soleniscus planus White 1881
†Soleniscus regularis Cox 1857
†Soleniscus typicus Meek and Worthen 1860
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Invalid names: Loxonema nitidula Meek and Worthen 1860 [synonym]
†Strobeus primogenius Conrad 1835
G. †Strobeus de Koninck 1881
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†Strobeus brevis White 1881
†Strobeus immanis Kues and Batten 2001
†Strobeus intercalaris Meek and Worthen 1860
†Strobeus keyesi Rowley 1900
†Strobeus mucronatus Yin 1932
†Strobeus nobilis Sowerby 1826
†Strobeus ovalis Yoo 1994
†Strobeus paludinaeformis Hall 1858
†Strobeus poromus Kues 1990
†Strobeus rectilinea Phillips 1836
†Strobeus stinesvillensis Cumings 1906
†Strobeus subglobosus Yin 1932
†Strobeus tantilla Rowley 1900
†Strobeus ventricosus de Koninck 1881
†Strobeus welleri Knight 1931
Invalid names: Macrochilina Bayle 1880 [synonym]
G. †Stylonema Perner 1907
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†Stylonema absoluta Goldfuss 1844
†Stylonema arachne Perner 1907
†Stylonema commutatum Perner 1907
†Stylonema dilatata Spitz 1907
†Stylonema domesticum Perner 1907
†Stylonema domina Perner 1903
†Stylonema hennahiana Sedgwick and Murchison 1840
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Invalid names: Stylonema costata Sandberger and Sandberger 1853 [synonym], Stylonema tenuireticulata Whidborne 1891 [synonym]
†Stylonema innotatum Perner 1907
†Stylonema mater Perner 1907
†Stylonema modestum Perner 1907
†Stylonema oppositum Perner 1907
†Stylonema peramplum Perner 1907
†Stylonema placidum Perner 1907
†Stylonema rennoni Heidelberger 2001
†Stylonema solitarium Perner 1907
†Stylonema styloideum Perner 1907
†Stylonema transiens Perner 1907
G. †Subulites Emmons 1842
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†Subulites acutus Wilson 1932
†Subulites amphora d'Eichwald 1856
†Subulites attenuatus Lindström 1884
†Subulites beloitensis Ulrich and Scofield 1897
†Subulites bohemicus Perner 1907
†Subulites calciferus Billings 1859
†Subulites canadensis Ulrich and Scofield 1897
†Subulites conradi Ulrich and Scofield 1897
†Subulites daphne Billings 1865
†Subulites dixonenesis Ulrich and Scofield 1897
†Subulites elongatus Portlock 1843
†Subulites gigas d'Eichwald 1842
†Subulites gloucesterensis Wilson 1951
†Subulites granum Koken and Perner 1925
†Subulites lineolata Lindström 1884
†Subulites longior Perner 1903
†Subulites nanus Ulrich and Scofield 1897
†Subulites parvus Ulrich and Scofield 1897
†Subulites pergracilis Ulrich and Scofield 1897
†Subulites planilateralis Foerste 1893
†Subulites priscus d'Eichwald 1860
†Subulites prolongatus Raymond 1905
†Subulites regularis Ulrich and Scofield 1897
†Subulites revalensis Koken 1897
†Subulites richardsoni Billings 1857
†Subulites stromboides Koken 1897
†Subulites subula Koken 1896
†Subulites terebriformis Hall and Whitfield 1875
†Subulites toernquisti Koken and Perner 1925
G. †Girtyspira Knight 1936
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†Girtyspira canaliculata Hall 1856
†Girtyspira germanica Herholz 1992
†Girtyspira inflata Yoo 1994
†Girtyspira minuta Stevens 1858
G. †Donaldina Knight 1933
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†Donaldina americana Thein and Nitecki 1974
†Donaldina barnetti Kindle 1900
†Donaldina bellilineata Miller 1891
†Donaldina filosa Yoo 1988
†Donaldina fountainensis Weller 1916
†Donaldina gigantea Heidelberger 2001
†Donaldina grantonensis Donald 1898
†Donaldina marigoldensis Thein and Nitecki 1974
†Donaldina media Bandel 2002
†Donaldina ohioensis Bandel 2002
†Donaldina pygmaea Weller 1916
†Donaldina robusta Stevens 1858
†Donaldina stevensana Meek and Worthen 1866
†Donaldina texana Bandel 2002
†Donaldina zadoe Thein and Nitecki 1974
G. †Kimina Yoo 1994
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†Kimina australis Yoo 1994
†Kimina globosa Yoo 1994
†Kimina minor Yoo 1994
†Kimina yooi Frýda and Bandel 1997
G. †Pseudoaclisina Yoo 1994
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†Pseudoaclisina microspirulata Yoo 1994
†Pseudoaclisina turgida Yoo 1988
G. †Streptacis Meek 1871
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†Streptacis complanata Hoare et al. 1997
†Streptacis ingens Hoare et al. 1997
†Streptacis meeki Knight 1931
†Streptacis scalpta Knight 1931
†Streptacis whitfieldi Meek 1871
G. †Pojetaia Jell 1980
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†Pojetaia ostseensis Hinz-Schallreuter 1995
†Pojetaia runnegari Jell 1980
†Pojetaia sarhoensis Geyer and Streng 1998
G. †Thoralia Morris 1980
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†Thoralia languedociana Thoral 1935
Invalid names: Miquelana Babin et al. 1982 [objective synonym]
G. †Cosmogoniophorina Isberg 1934
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†Cosmogoniophorina tenuicostata Harrington 1938
G. †Flexicalymene Shirley 1936
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†Flexicalymene parvicephala Stumm and Kauffman 1958
G. †Neospirifer Fredericks 1919
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†Neospirifer alatus Dunbar and Condra 1932
†Neospirifer brevimarginatus Hoare 1960
G. †Bolboporites Pander 1830
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Invalid names: Bolboporites Pander 1830 [objective synonym]
Fm. †Phanerotrematidae Knight 1956
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G. †Ulrichospira Donald 1905
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†Ulrichospira lloydii de Sowerby and Murchison 1839
†Ulrichospira othemensis Lindström 1884
†Ulrichospira similis Donald 1905
†Ulrichospira valida Lindström 1884
Subfm. †Knightitinae Knight 1956
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G. †Cymatospira Knight 1942
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†Cymatospira alternodosa Whitfield 1882
†Cymatospira montfortianus Norwood and Pratten 1855
†Cymatospira welleri Thein and Nitecki 1974
G. †Patellilabia Knight 1945
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†Patellilabia alticarinata Wang 1980
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Invalid names: Patellilabia acutangula Wang 1980 [synonym], Patellilabia anshunense Wang 1980 [synonym], Patellilabia fragilis Wang 1980 [synonym], Patellilabia mira Wang 1980 [synonym], Patellilabia obliqua Wang 1980 [synonym], Patellilabia papilionis Wang 1980 [synonym], Patellilabia strictomarginata Wang 1980 [synonym], Patellilabia ventricula Wang 1980 [synonym]
†Patellilabia chesterensis Thein and Nitecki 1974
†Patellilabia laevigata Girty 1910
†Patellilabia scriptiferus White 1862
†Patellilabia tentoriolum Knight 1945
Invalid names: Aiptospira Wang 1980 [synonym], Extendilabrum Wang 1980 [synonym], Singulitubus Wang 1980 [synonym], Tetratubispira Wang 1980 [synonym]
G. †Paupospira Wagner 1999
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†Paupospira akpatokensis Wilson 1939
†Paupospira beatrice Foerste 1914
†Paupospira bowdeni Safford 1869
†Paupospira burginensis Ulrich and Scofield 1897
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Invalid names: Paupospira peracuta Ulrich and Scofield 1897 [synonym]
†Paupospira circe Billings 1857
†Paupospira elevata Ulrich and Scofield 1897
†Paupospira manitouliensis Foerste 1924
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Invalid names: Paupospira gamachiana Twenhofel 1928 [synonym]
†Paupospira moorei Ulrich and Scofield 1897
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Invalid names: Paupospira gigantea Twenhofel 1928 [synonym]
†Paupospira oweni Ulrich and Scofield 1897
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Invalid names: Lophospira saffordi Ulrich and Scofield 1897 [synonym], Pleurotomaria (Lophospira) spoliata Perner 1907 [synonym]
†Paupospira soluta Koken and Perner 1925
†Paupospira sumnerensis Safford 1869
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Invalid names: Paupospira liosutura Secrist and Evitt 1943 [synonym]
†Paupospira tenuistriata Ulrich and Scofield 1897
†Paupospira thebesensis Savage 1913
†Paupospira tropidophora Meek 1873
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Invalid names: Lophospira acutocarinata Twenhofel 1928 [synonym], Lophospira ampla Ulrich and Scofield 1897 [synonym], Paupospira expansa Secrist and Evitt 1943 [synonym], Paupospira perlamellosus Ulrich and Scofield 1897 [synonym]
†Paupospira varians Billings 1857
†Paupospira viator Perner 1907
Fm. †Oriostomatidae Koken 1896
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G. †Australonema Tassell 1980
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†Australonema acuta Heidelberger 2001
†Australonema australis Etheridge 1890
†Australonema blodgetti Frýda and Manda 1997
†Australonema chico Mawson et al. 2002
†Australonema guillieri Oehlert 1877
†Australonema havliceki Frýda and Bandel 1997
†Australonema immersum Spitz 1907
†Australonema iniquilineatum Sandberger and Sandberger 1854
†Australonema lilydalensis Etheridge 1891
†Australonema melbournensis Tassell 1980
†Australonema parva Mawson et al. 2002
†Australonema persimile Spitz 1907
†Australonema simpsoni Cook and Camilleri 1997
†Australonema varvarae Gubanov and Yochelson 1994
†Australonema wellingtonensis Etheridge 1898
G. †Lineata Heidelberger 2001
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†Lineata dannenbergi Goldfuss 1844
†Lineata zenkeri Heidelberger 2001
G. †Morphotropis Perner 1903
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†Morphotropis aliena Perner 1903
†Morphotropis bohemica Perner 1903
†Morphotropis capillosa Perner 1903
†Morphotropis discreta Perner 1903
†Morphotropis helicina Lindström 1884
†Morphotropis nitidissimum Lindström 1884
†Morphotropis obsolescens Perner 1903
†Morphotropis procera Perner 1903
†Morphotropis tremulans Perner 1903
G. †Omphalonema Grabau 1936
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†Omphalonema carbonaria Yin 1932
†Omphalonema globosum Horný 1992
Invalid names: Globulonema Frýda and Bandel 1997 [synonym]
Invalid names: Cyclospongia Miller 1891 [nomen nudum]
Fm. †Omphalotrochidae Knight 1945
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G. †Archaeosphera Heidelberger and Bandel 1999
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†Archaeosphera lithoides Kirchner 1915
†Archaeosphera minimus Kirchner 1915
†Archaeosphera simbergi Heidelberger 2001
†Archaeosphera wachtbergi Kirchner 1915
G. †Coronopsis Waterhouse 1963
G. †Labrocuspis Heidecker 1959
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†Labrocuspis kobayashii Kase and Nishida 1986
†Labrocuspis nodosa Heidecker 1959
G. †Omphalotrochus Meek 1864
G. †Trochonemopsis Meek 1873
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†Trochonemopsis emacerata Hall and Whitfield 1872
†Trochonemopsis meekanum Miller 1889
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Invalid names: Trochonemopsis ovoides Grabau and Sherzer 1910 [synonym], Trochonemopsis tricarinata Meek 1871 [replaced]
†Trochonemopsis rectilatera Hall and Whitfield 1872
†Trochonemopsis yandellana Hall and Whitfield 1872
G. †Frodospira Wagner 1999
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†Frodospira cochleata Lindström 1884
†Frodospira imbricata Lindström 1884
†Frodospira munda Lindström 1884
†Frodospira tortuosa Lindström 1884
Or. †Murchisoniina Cox and Knight 1960
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Superfm. †Eotomarioidea Wenz 1938
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Fm. †Phymatopleuridae Batten 1956
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G. †Austroscalata Waterhouse 1987
G. †Catazona Gordon and Yochelson 1983
G. †Discotomaria Batten 1956
G. †Vicnigoria Mazaev 2019
Fm. †Porcelliidae von Zittel 1895
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Subfm. †Agnesiinae Knight 1956
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G. †Anoriostoma Farrell 1992
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†Anoriostoma inusitata Farrell 1992
Invalid names: Garraspira Frýda and Farrell 2005 [synonym]
Subfm. †Pavlodiscinae Fryda 1998
G. †Quadricarina Blodgett and Johnson 1992
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†Quadricarina attava Perner 1907
†Quadricarina cancellata Lindström 1884
†Quadricarina glabrobasis Blodgett and Johnson 1992
†Quadricarina glandiformis Lindström 1884
†Quadricarina hamlingii Whidborne 1896
†Quadricarina humillima Perner 1907
†Quadricarina lenticularis Goldfuss 1844
†Quadricarina noklebergi Frýda and Blodgett 2004
†Quadricarina pioni Tassell 1982
†Quadricarina quadrata Spitz 1907
†Quadricarina quadrilix Hall 1879
†Quadricarina scutulata Lindström 1884
†Quadricarina senilis Perner 1907
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Invalid names: Pleurotomaria (Oehlertia) daphnella Perner 1907 [synonym], Pleurotomaria (Oehlertia) humilis Perner 1907 [synonym]
†Quadricarina trochiformis Spitz 1907
†Quadricarina voltumna Billings 1874
Invalid names: Oehlertia Perner 1907 [replaced], Paraoehlertia Frýda 1998 [synonym]
Fm. †Portlockiellidae Batten 1956
Invalid names: Porcellioidea von Zittel 1895 [synonym]
Superfm. †Loxonematoidea Koken 1889
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Fm. †Crassimarginatidae Frýda et al. 2002
Fm. †Scoliostomatidae Frýda et al. 2002
Fm. †Soleniscidae Knight 1931
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G. †Decorochilina Frýda 1999
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†Decorochilina aulakion Mawson et al. 2002
†Decorochilina beushauseni Clarke 1907
†Decorochilina bohemica Perner 1903
†Decorochilina cancellata Lindström 1884