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Multiceratoidea
Taxonomy
Multiceratoidea was named by Mutvei (2013).
It was reranked as the subclass Multiceratia by King and Evans (2019); it was reranked as the subclass Multiceratoidea by Pohle et al. (2022).
It was assigned to Nautiloidea by Mutvei (2013); and to Cephalopoda by King and Evans (2019) and Pohle et al. (2022).
It was reranked as the subclass Multiceratia by King and Evans (2019); it was reranked as the subclass Multiceratoidea by Pohle et al. (2022).
It was assigned to Nautiloidea by Mutvei (2013); and to Cephalopoda by King and Evans (2019) and Pohle et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Multiceratoidea Mutvei p. 172 |
| 2019 | Multiceratia King and Evans p. 76 |
| 2022 | Multiceratoidea Pohle et al. p. 21 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Subcl. †Multiceratoidea Mutvei 2013
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Fm. †Apocrinoceratidae Flower and Teichert 1957
+
G. †Paldoceras Kröger et al. 2009
+
†Paldoceras neptunsakerense Kröger et al. 2009
†Paldoceras paldiskense Kröger et al. 2009
Fm. †Apsidoceratidae Hyatt 1884
+
G. †Charactoceras Foerste 1924
+
†Charactoceras baeri Meek and Worthen 1865
†Charactoceras cinereum Blake 1882
†Charactoceras estonicum Strand 1934
†Charactoceras hercules Billings 1857
†Charactoceras kallholnense Frye 1982
†Charactoceras raettvikense Frye 1982
†Charactoceras suecicum Frye 1982
†Charactoceras triangulum Frye 1982
Invalid names: Charactocerina Foerste 1935 [synonym]
G. †Chidleyenoceras Shimizu and Obata 1935
G. †Deckeroceras Foerste 1935
G. †Fremontoceras Foerste 1935
+
†Fremontoceras giganteum Flower 1952
†Fremontoceras jewetti Flower 1947
G. †Kinaschukoceras
G. †Wilsonoceras Foerste 1929
Or. †Ascocerida Kuhn 1949
+
Fm. †Ascoceratidae Barrande 1867
+
G. †Ascoceras Barrande 1847
Subfm. †Ascoceratinae Barrande 1867
+
G. †Aphragmites Barrande 1865
G. †Glossoceras Barrande 1865
G. †Parascoceras Miller 1932
G. †Billingsites Hyatt 1864
+
†Billingsites anticostiensis Billings 1866
†Billingsites canadensis Billings 1857
†Billingsites deformis Eichwald 1860
†Billingsites manitoulinense Foerste 1924
G. †Schuchertoceras Miller 1932
+
†Schuchertoceras anticostiensis Billings 1866
†Schuchertoceras bodense Frye 1982
†Schuchertoceras fryi Kröger 2013
†Schuchertoceras norvegicum Barrande 1867
†Schuchertoceras troedssoni Foerste 1929
+
Invalid names: Schuchertoceras ringerikiense Strand 1934 [synonym]
G. †Shamattawaceras Foerste and Savage 1927
Fm. †Hebetoceratidae Flower 1940
+
G. †Hebetoceras Flower 1941
+
†Hebetoceras cylindriforme Flower 1941
†Hebetoceras mirandum Flower 1941
G. †Montyoceras Flower 1941
+
†Montyoceras arcuatum Flower 1941
†Montyoceras curviseptatum Flower 1941
†Montyoceras titaniforme Flower 1941
Invalid names: Hebetoceratinae Flower 1941 [empty]
G. †Linstroemoceras
Fm. †Probillingsitidae Kröger 2013
+
G. †Probillingsites Foerste 1928
+
†Probillingsites cobourgensis Flower 1952
†Probillingsites inflatus Flower 1952
†Probillingsites scandinavicum Kröger 2013
†Probillingsites welleri Foerste 1928
G. †Redpathoceras Flower 1963
+
†Redpathoceras bullatum Kröger 2013
†Redpathoceras depressum Kröger 2013
†Redpathoceras magnum Kröger 2013
Fm. †Bassleroceratidae Ulrich et al. 1944
+
G. †Anguloceras Unklesbay and Young 1956
+
†Anguloceras depressum Unklesbay and Young 1956
†Anguloceras ovatum Unklesbay and Young 1956
†Anguloceras rotundum Unklesbay and Young 1956
G. †Avaoceras Ulrich et al. 1944
+
†Avaoceras elongatum Ulrich et al. 1944
†Avaoceras longidomum Ulrich et al. 1944
†Avaoceras magnisiphonatum Ulrich et al. 1944
†Avaoceras wellsense Ulrich et al. 1944
G. †Avoceras Sepkoski 2002
G. †Lawrenceoceras Ulrich et al. 1944
+
†Lawrenceoceras breve Ulrich et al. 1944
†Lawrenceoceras collinsi Ulrich et al. 1944
†Lawrenceoceras confertissimum Whitfield 1886
G. †Leptocyrtoceras Ulrich et al. 1944
+
†Leptocyrtoceras curvatum Ulrich et al. 1944
†Leptocyrtoceras powellense Ulrich et al. 1944
†Leptocyrtoceras virginianum Ulrich et al. 1944
G. †Monogonoceras Ulrich et al. 1944
+
†Monogonoceras alabamense Ulrich et al. 1944
†Monogonoceras magnisiphonatum Ulrich et al. 1944
†Monogonoceras subrectum Ulrich et al. 1944
G. †Onychoceras Ulrich and Foerste 1936
+
†Onychoceras australe Ulrich et al. 1944
†Onychoceras subrotundum Ulrich et al. 1944
†Onychoceras surgens Barrande 1870
G. †Stylocyrtoceras Ulrich et al. 1944
+
†Stylocyrtoceras avaense Ulrich et al. 1944
†Stylocyrtoceras tantillum Stauffer 1937
Fm. †Clinoceratidae Flower 1946
+
G. †Whiteavesites Foerste 1929
G. †Whitfieldoceras Foerste 1932
+
†Whitfieldoceras gracile Flower 1952
†Whitfieldoceras lenticontractum Flower 1952
Fm. †Cyclostomiceratidae Foerste 1925
+
G. †Cyclostomiceras Hyatt 1900
+
†Cyclostomiceras cassinense Whitfield 1886
†Cyclostomiceras depressius Cecioni 1953
†Cyclostomiceras depressum Ulrich et al. 1943
†Cyclostomiceras minimum Whitfield 1886
†Cyclostomiceras thorali Kröger and Evans 2011
†Cyclostomiceras vasiforme Dwight 1884
Invalid names: Amphoroceras Ulrich and Foerste 1936 [synonym]
G. †Eocyclostomiceras Chen in Qi et al 1983
+
†Eocyclostomiceras clinoseptatum Chen, in Qi et al 1983
†Eocyclostomiceras subventrum Chen, in Qi et al 1983
†Eocyclostomiceras ventrum Chen, in Qi et al 1983
G. †Paracyclostomiceras Cecioni 1953
+
†Paracyclostomiceras floweri Cecioni 1953
†Paracyclostomiceras paucitumidum King 1998
Or. †Cyrtocerinida Mutvei 2015
+
Fm. †Cyrtocerinidae Flower 1946
+
G. †Cyrtocerina Billings 1865
+
†Cyrtocerina crenulata Flower 1952
†Cyrtocerina foerstei Flower 1952
†Cyrtocerina kimmswickense Flower 1952
Or. †Discosorida Flower 1950
+
G. †Aipetoceras
G. †Akroceras
G. †Anamesoceras
G. †Asbestoceras
G. †Brodekoceras
G. †Carotites
G. †Chuticeras
G. †Comaroceras
Fm. †Cyrtogomphoceratidae Flower 1940
+
G. †Brachydomoceras Teichert and Glenister 1952
+
†Brachydomoceras erectum Teichert and Glenister 1952
G. †Cyrtogomphoceras Foerste 1924
+
†Cyrtogomphoceras magnum Whiteaves 1890
†Cyrtogomphoceras troedssoni Teichert 1930
G. †Kiaeroceras Strand 1934
+
†Kiaeroceras frognoyense Strand 1934
†Kiaeroceras heroyense Strand 1934
G. †Konglungenoceras Sweet 1959
G. †Kullsbergoceras Kröger and Aubrechtová 2019
+
†Kullsbergoceras nissei Kröger and Aubrechtová 2019
G. †Landeroceras Foerste 1935
G. †Parryoceras Sweet and Miller 1957
G. †Polyelasmoceras Teichert and Glenister 1952
+
†Polyelasmoceras aduncum Teichert and Glenister 1952
G. †Strandoceras Flower 1946
+
†Strandoceras orvikui Kröger 2007
†Strandoceras schmidti Teichert 1930
†Strandoceras sonax Salter 1858
†Strandoceras sphinx Schmidt 1858
†Strandoceras sphinx Schmidt 1858
†Strandoceras strandi Sweet 1958
†Strandoceras tyriense Strand 1934
G. †Ulrichoceras Foerste 1928
G. †Deiloceras
Fm. †Discosoridae Miller 1889
+
G. †Drakonoceras
G. †Dynatoceras
G. †Elpisoceras
Fm. †Entimoceratidae Zhuravleva 1972
+
G. †Aigoceras Zhuravleva 1972
G. †Aletoceras Flower 1938
G. †Andreioceras Zhuravleva 1972
G. †Anglicornus Flower and Caster 1935
G. †Athanatoceras Zhuravleva 1972
G. †Chrysoceras Zhuravleva 1972
G. †Deinoceras Zhuravleva 1972
G. †Elaphoceras Zhuravleva 1972
G. †Entimoceras Zhuravleva 1972
G. †Gonatocyrtoceras Foerste 1926
G. †Jaregoceras Zhuravleva 1972
G. †Kadaroceras Zhuravleva 1972
G. †Karadzharoceras Zhuravleva 1972
G. †Katageioceras Zhuravleva 1972
G. †Kitatites Zhuravleva 1972
G. †Kladiscoceras Zhuravleva 1972
G. †Micronoceras Flower 1938
G. †Mjandymoceras Zhuravleva 1972
G. †Pancornus Zhuravleva 1972
G. †Pantoioceras Zhuravleva 1972
G. †Plagioceras Zhuravleva 1972
G. †Rhynchoceras Zhuravleva 1972
G. †Selenoceras Zhuravleva 1972
G. †Sophoceras Zhuravleva 1972
G. †Stagonites Zhuravleva 1972
G. †Stroggyloceras Zhuravleva 1972
G. †Taskanoceras Zhuravleva 1972
G. †Tritonoceras Zhuravleva 1972
G. †Ungulites Zhuravleva 1972
G. †Zooceras Zhuravleva 1972
G. †Exochoceras
G. †Gouldoceras Stait 1980
+
†Gouldoceras obliquum Teichert and Glenister 1953
†Gouldoceras synchonena Stait 1980
G. †Hysteroceras
+
†Hysteroceras pseudocornutum Spath 1934
†Hysteroceras serpentinum Spath 1934
†Hysteroceras simplicicosta Spath 1934
G. †Kotelnyoceras
Fm. †Lowoceratidae Flower 1940
+
G. †Endodiscosorus Teichert 1931
G. †Kayoceras Foerste 1934
G. †Lowoceras Foerste and Savage 1927
G. †Stokesoceras Foerste 1924
G. †Tuyloceras Foerste and Savage 1927
Fm. †Mandaloceratidae Flower and Teichert 1957
+
G. †Cayugoceras Flower 1947
G. †Cinctoceras Flower 1957
G. †Mandaloceras Hyatt in Zittel 1900
G. †Ovocerina Flower 1957
G. †Pseudogomphoceras Flower 1957
G. †Umbeloceras Flower 1957
G. †Vespoceras Flower 1957
G. †Manjoceras
G. †Metrioceras
G. †Nipageroceras
G. †Nucites
G. †Paramecynoceras
G. †Parawestonoceras Zhuravleva 1972
G. †Parevlanoceras
G. †Pelagoceras
Fm. †Phragmoceratidae Miller 1877
+
G. †Phragmoceras Broderip 1839
+
†Phragmoceras munthei Hedström 1917
+
Invalid names: Phragmoceras convolutum Hedström 1917 [synonym]
Invalid names: Pseudophragmoceras Zhuravleva 1972 [synonym]
G. †Phragmocerina Flower 1948
G. †Pristeroceras Ruedmann 1925
G. †Protophragmoceras Hyatt 1900
+
†Protophragmoceras erskinei Lamont 1978
†Protophragmoceras murchisoni Barrande 1867
G. †Sthenoceras Flower 1957
G. †Talattoceras Miagkova 1967
+
†Talattoceras crenatum Miagkova 1967
†Talattoceras inflatum Miagkova 1967
G. †Physioceras
G. †Pseudobolloceras
G. †Radoceras
G. †Raphanites
G. †Ropaloceras
G. †Smileoceras
G. †Spondeioceras
G. †Strobiloceras
G. †Synetoceras
G. †Taoqupoceras
G. †Taxyceras
Fm. †Taxyceratidae Zhuravleva 1972
+
G. †Cyclopoceras Mironenko 2018
+
†Cyclopoceras abundans Zhuravleva 1972
†Cyclopoceras cyclops Wenjukoff 1886
Invalid names: Cyclopites Zhuravleva 1962 [replaced]
G. †Therioceras
G. †Ukhtoceras
G. †Urtasymoceras
Fm. †Westonoceratidae Teichert 1933
+
G. †Antiphragmoceras Foerste 1925
G. †Broeggeroceras Sweet 1958
+
†Broeggeroceras contractum Sweet 1958
†Broeggeroceras elongatum Sweet 1958
G. †Clarkesvillia Flower 1946
G. †Glyptodendron Claypole 1878
+
†Glyptodendron eatonense Claypole 1878
Invalid names: Glyptoceras Foerste 1893 [objective synonym]
G. †Hemibeloitoceras Balashov 1962
+
†Hemibeloitoceras arduum Kröger and Aubrechtova 2017
†Hemibeloitoceras ellipsoidale Balashov 1962
†Hemibeloitoceras molis Kröger and Aubrechtova 2017
G. †Reedsoceras Foerste 1929
G. †Simardoceras Flower 1957
G. †Teichertoceras Foerste 1933
G. †Westonoceras Foerste 1924
+
†Westonoceras askerense Strand 1934
†Westonoceras baffinense Schuchert 1900
†Westonoceras cornulum Schuchert 1900
†Westonoceras manitobense Whiteaves 1890
†Westonoceras osloense Strand 1934
Invalid names: Thuleoceras Troedsson 1928 [synonym]
G. †Winnipegoceras Foerste 1928
+
†Winnipegoceras fragmentaricum Strand 1934
†Winnipegoceras laticurvatum Whiteaves 1897
†Winnipegoceras sinclairi Flower 1952
G. †Xiphoceras
Or. †Oncocerida Flower and Kummel, Jr. 1950
+
Fm. †Acleistoceratidae Flower 1950
+
G. †Anomeioceras Foerste 1930
G. †Austinoceras Foerste 1934
G. †Byronoceras Foerste and Savage 1927
G. †Chadwickoceras Foerste 1930
G. †Clionyssiceras Foerste 1930
G. †Crateroceras Foerste and Savage 1927
G. †Ectocyrtoceras Foerste 1930
G. †Euryrizoceras Foerste 1935
G. †Galtoceras Foerste 1934
G. †Grimsbyoceras Foerste 1934
G. †Hercocyrtoceras Foerste 1927
G. †Paracleistoceras Foerste 1926
G. †Perioidanoceras Foerste 1930
G. †Poteriocerina Foerste 1926
G. †Slocomoceras Foerste 1930
G. †Streptoceras Billings 1866
G. †Tumidoceras Flower 1949
G. †Worthenoceras Foerste 1930
G. †Yunnanoceras Chen et al. 1981
G. †Agrioceras
G. †Alloceras
G. †Almaloceras
G. †Anonymoceras
G. †Anthomorpha Author
G. †Antonoceras Shimanskiy 1957
G. †Aphyctoceras
+
G. †Apioceras Fahrenkohl 1844
Fm. †Archiacoceratidae Teichert 1939
+
G. †Archiacoceras Foerste 1926
G. †Cyrtoceratites Goldfuss 1830
G. †Devonocheilus Shimanskiy 1962
G. †Atomoceras
G. †Balashovia
Fm. †Brevicoceratidae Flower 1945
+
G. †Blastocerina Flower 1940
G. †Eleusoceras Flower 1938
G. †Exocyrtoceras Flower 1938
+
†Exocyrtoceras minutum Flower 1945
†Exocyrtoceras reimanni Flower 1945
G. †Foersteoceras Ruedemann 1925
G. †Gonionaedyceras Flower 1945
G. †Gyronaedyceras Flower 1945
G. †Mitroceras Hyatt 1894
G. †Naedyceras Hyatt 1884
+
†Naedyceras contractum Flower 1945
†Naedyceras gibbosum Flower 1945
Invalid names: Gyroceras Owen 1844 [synonym]
G. †Ovoceras Flower 1936
G. †Oxygonioceras Foerste 1925
G. †Stereotoceras Flower 1950
G. †Verticoceras Flower 1936
G. †Wissenbachia Foerste 1926
G. †Corbuloceras
G. †Corysoceras
Superfm. †Cyrthocerataceae Chapman 1857
+
Fm. †Cyrthoceratidae Chapman 1857
+
Fm. †Oocerinidae Teichert 1938
+
G. †Hiregiroceras Miagkova 1967
+
†Hiregiroceras costalatum Miagkova 1967
†Hiregiroceras verum Miagkova 1967
G. †Paroocerina Zhuravleva 1961
+
†Paroocerina arctum Miagkova 1967
†Paroocerina borealis Miagkova 1967
G. †Cyrtoceras
+
Subg. †Cyrtoceras (Meloceras) Foord 1888
†Cyrtoceras indomitum Barrande 1867
†Cyrtoceras minneapolis Clarke 1897
†Cyrtoceras murchisoni Barrande 1867
†Cyrtoceras nevadense Walcott 1884
Fm. †Devonocheilidae Zhuravleva 1972
+
G. †Lysagoroceras Schönenberg 1952
G. †Platyconoceras Zhuravleva 1972
Fm. †Diestoceratidae Foerste 1926
+
G. †Danoceras Troedsson 1926
+
†Danoceras breve Strand 1934
†Danoceras broggeri Strand 1934
†Danoceras inutile Flower 1952
†Danoceras ravni Troedsson 1926
†Danoceras scandinavicum Strand 1934
†Danoceras skalbergensis Kröger and Aubrechtová 2019
Invalid names: Hyperoceras Foerste 1928 [synonym]
G. †Diestoceras Foerste 1924
+
†Diestoceras acuminatum Strand 1934
†Diestoceras anticostiense Foerste 1928
†Diestoceras approximatum M'Coy 1846
†Diestoceras breviconum Portlock 1843
†Diestoceras carletonense Twenhofel 1928
†Diestoceras eos Hall and Whitfield 1875
†Diestoceras inaequiseptum Portlock 1843
†Diestoceras indianense Miller and Faber 1894
†Diestoceras isotelorum Strand 1934
†Diestoceras lamonti Teichert 1940
†Diestoceras lavalense Flower 1952
†Diestoceras scoticum Teichert 1940
†Diestoceras shideleri Foerste 1924
†Diestoceras sinclairi Flower 1952
†Diestoceras stensioei Troedsson 1926
†Diestoceras stormeri Strand 1934
†Diestoceras sycon Flower 1952
†Diestoceras waynesvillense Flower 1946
G. †Dowlingoceras Foerste 1928
+
†Dowlingoceras gracile Whiteaves 1892
†Dowlingoceras piersalense Teichert 1930
G. †Lyckholmoceras Teichert 1930
+
†Lyckholmoceras constrictum Strand 1934
†Lyckholmoceras estoniae Teichert 1930
†Lyckholmoceras norvegiae Strand 1934
G. †Doleroceras
G. †Eocyrtoceras
G. †Eudoceras Hyatt 1884
G. †Gomphoceras Sowerby 1839
+
†Gomphoceras eichwaldi de Verneuil 1845
†Gomphoceras suboviforme Walcott 1884
Fm. †Graciloceratidae Flower in Flower and Kummel 1950
+
G. †Isbergoceras Kröger and Aubrechtová 2019
+
†Isbergoceras consobrinum Kröger and Aubrechtová 2019
†Isbergoceras niger Kröger and Aubrechtová 2019
G. †Guangyuanoceras
Fm. †Hemiphragmoceratidae Foerste 1926
+
G. †Conradoceras Foerste 1926
G. †Hemiphragmoceras Hyatt in Zittel 1900
G. †Hexameroceras Hyatt 1884
G. †Octamerella Teichert and Sweet 1962
G. †Octameroceras Hyatt 1900
+
†Octameroceras callistoma Barrande 1867
†Octameroceras scotorum Lamont 1978
G. †Tetrameroceras Hyatt 1884
G. †Iowoceras
Fm. †Jovellaniidae Foord 1888
+
G. †Bohemojovellania Manda 2001
+
†Bohemojovellania adrae Kröger 2008
†Bohemojovellania bouskai Manda 2001
†Bohemojovellania obliquum Kröger 2008
G. †Herkimeroceras Foerste 1926
G. †Laumontoceras Foerste 1926
G. †Mixosiphonoceras Hyatt 1900
+
†Mixosiphonoceras desolatum Barrande 1877
†Mixosiphonoceras norvegicum Strand 1934
G. †Rhytidoceras Miagkova 1967
G. †Xyloceras Miagkova 1967
+
†Xyloceras jovellanum Miagkova 1967
†Xyloceras moyerocanum Miagkova 1967
Fm. †Karoceratidae Teichert 1939
+
G. †Kallholnoceras
G. †Karoceras Roussanoff 1909
G. †Osbornoceras Foerste 1936
G. †Shuranoceras Barskov 1959
G. †Kophinoceras
G. †Lychnoceras
G. †Megaloceras
G. †Mimolychnoceras
G. †Mnemoceras
G. †Nelimenia Laporte 1843
Fm. †Nothoceratidae Fischer 1882
+
G. †Blakeoceras Foerste 1926
G. †Bolloceras Foerste 1926
G. †Conostichoceras Foerste 1926
G. †Lorieroceras Foerste 1926
G. †Metaphragmoceras Flower 1938
G. †Nothoceras Barrande 1856
Subfm. †Nothoceratinae Fischer 1882
+
G. †Mixosiphonocerina Chen et al. 1981
G. †Piestoocerina Chen et al. 1981
G. †Yichangoceras Chen et al. 1981
G. †Paraconradoceras Foerste 1926
G. †Turnoceras Foerste 1926
G. †Oligoceras
Fm. †Oncoceratidae Hyatt 1884
+
G. †Asaphiceras Foerste 1928
G. †Beloitoceras Foerste 1924
+
†Beloitoceras amoenum Miller 1879
†Beloitoceras bucheri Flower 1946
†Beloitoceras cautis Kröger and Aubrechtova 2017
†Beloitoceras estonicum Teichert 1930
†Beloitoceras huronense Billings 1865
†Beloitoceras kirtoni Teichert and Glenister 1953
†Beloitoceras lobiferum Flower 1952
†Beloitoceras orilliense Flower 1952
†Beloitoceras pandion Hall 1861
†Beloitoceras plebeium Hall 1861
†Beloitoceras stoermeri Sweet 1958
†Beloitoceras thorslundi Kröger and Aubrechtová 2019
G. †Centrorizoceras Foerste 1930
G. †Cyrtorizoceras Hyatt 1900
+
†Cyrtorizoceras borni Teichert 1930
†Cyrtorizoceras minneapolis Clarke 1897
†Cyrtorizoceras rusti Flower 1952
†Cyrtorizoceras tenue Strand 1934
†Cyrtorizoceras thorslundi Kröger 2013
G. †Dalecarlioceras Frye 1987
+
†Dalecarlioceras bodense Frye 1987
†Dalecarlioceras constrictum Frye 1987
†Dalecarlioceras dalecarlicum Frye 1987
G. †Digenuoceras Foerste 1935
G. †Dunleithoceras Foerste 1924
G. †Ehlersoceras Foerste 1932
G. †Ekwanoceras Foerste and Savage 1927
G. †Kentlandoceras Foerste 1932
G. †Laphamoceras Foerste 1933
+
G. †Loganoceras Foerste 1932
G. †Maelonoceras Hyatt 1884
+
†Maelonoceras metellus Billings 1865
†Maelonoceras praematurum Billings 1860
+
Invalid names: Maelonoceras billingsi Foerste 1924 [synonym]
Invalid names: Meloceras Foord 1888 [synonym]
G. †Metarizoceras Foerste 1930
G. †Neumatoceras Foerste 1935
+
†Neumatoceras borense Kröger et al. 2009
†Neumatoceras drummuckense Teichert 1940
†Neumatoceras parviborense Kröger et al. 2009
G. †Oncoceras Hall 1847
+
†Oncoceras carletonense Twenhofel 1928
†Oncoceras major Frey 1995
†Oncoceras pauper Foerste 1924
†Oncoceras pristinum Ruedemann 1906
G. †Oocerina Foerste 1926
G. †Orthorizoceras Kröger 2008
+
†Orthorizoceras desertum Kröger 2008
†Orthorizoceras sinkovense Balashov 1968
G. †Plesiorizosceras Chen et al. 1981
G. †Richardsonoceras Foerste 1932
+
†Richardsonoceras gastroscopium Kröger et al. 2009
†Richardsonoceras gerhardi Kröger et al. 2009
†Richardsonoceras goldmanni Kröger et al. 2009
†Richardsonoceras haelluddenense Kröger et al. 2009
†Richardsonoceras sinuososeptatum Roemer 1861
+
Invalid names: Beloitoceras heterocurvatum Strand 1934 [synonym]
G. †Richardsonoceroides Chen 1987
+
†Richardsonoceroides kingi Kröger et al. 2009
†Richardsonoceroides oelandense Kröger et al. 2009
†Richardsonoceroides rhytium Kröger et al. 2009
†Richardsonoceroides schiefferdeckeri Dewitz 1880
G. †Rizoceras Hyatt 1884
+
†Rizoceras acris Miagkova 1967
†Rizoceras inventum Miagkova 1967
†Rizoceras rectum Miagkova 1967
G. †Romingoceras Foerste 1932
G. †Scofieldoceras Foerste 1932
G. †Tshingizoceras
G. †Vaupelia Flower 1946
G. †Zittelloceras Hyatt 1884
+
†Zitteloceras costatum Teichert 1940
†Zitteloceras hitzi Foerste 1910
†Zitteloceras praecedens Flower 1952
Fm. †Oonoceratidae Hyatt 1884
+
G. †Oonoceras Hyatt 1884
+
†Ooceras lativentrum Ruedemann 1906
†Ooceras perkinsi Ruedemann 1906
†Ooceras seelyi Ruedemann 1906
†Oonoceras priscum Eichwald 1861
G. †Oratoceras
G. †Pachtoceras Foerste 1926
Fm. †Polyelasmoceratidae Shimanskiy 1956
+
G. †Coelocyrtoceras Foerste 1926
G. †Cyrtocheilus Shimanskiy 1962
G. †Danaoceras Foerste 1926
G. †Evlanoceras Zhuravleva 1962
G. †Hipparionoceras Flower 1945
+
†Hipparionoceras expansum Flower 1945
†Hipparionoceras ichnoides Flower 1945
†Hipparionoceras iowaense Flower 1945
†Hipparionoceras lairdi Flower 1945
G. †Macrodomoceras Teichert and Glenister 1952
+
†Macrodomoceras howitti Teichert and Glenister 1952
G. †Turoceras Zhuravleva 1959
G. †Wadeoceras Teichert 1939
Fm. †Poterioceratidae Foord 1888
+
G. †Argocheilus Shimanskiy 1961
G. †Cyrtogomphus Flower 1938
G. †Mecynoceras Foerste 1926
G. †Welleroceras Miller and Furnish 1938
G. †Xenoceras Flower 1952
G. †Pyramidoceras
G. †Ramussenoceras Foerste 1932
Superfm. †Rutoceratoidea Hyatt 1884
+
Fm. †Hercoceratidae Hyatt 1884
+
G. †Otomaroceras Manda and Turek 2009
+
†Otomaroceras flexum Barrande 1865
+
Invalid names: Ptenoceras flexum Hyatt 1894 [synonym], Trochoceras distortum Barrande 1865 [synonym]
G. †Spanioceras
G. †Sycoceras Pictet 1854
G. †Torquatoceras
G. †Trigonodema Laporte 1843
Fm. †Trimeroceratidae Hyatt and Zittel 1900
+
G. †Clathroceras Foerste 1926
G. †Inversoceras Hedström 1917
G. †Pentameroceras Hyatt 1884
G. †Platycomeroceras Chen et al. 1981
G. †Stenogomphoceras Foerste 1930
G. †Trimeroceras Hyatt 1884
Fm. †Valcouroceratidae Flower 1946
+
G. †Augustoceras Flower 1946
+
†Augustoceras molense Stait 1982
†Augustoceras shideleri Flower 1946
†Augustoceras vallandighami Miller 1874
G. †Fayettoceras Foerste 1932
G. †Kindleoceras Foerste 1924
+
†Kindleoceras reversatum Foerste 1924
†Kindleoceras triangulare Foerste 1924
G. †Manitoulinoceras Foerste 1924
+
†Manitoulinoceras gyroforme Flower 1946
†Manitoulinoceras lysander Billings 1865
†Manitoulinoceras postumius Billings 1865
G. †Minganoceras Foerste 1938
G. †Staufferoceras Foerste 1932
G. †Valcouroceras Flower 1943
+
†Valcouroceras bovinum Flower 1943
†Valcouroceras cyclops Flower 1943
†Valcouroceras elongatum Flower 1952
†Valcouroceras holtedahli Sweet 1958
†Valcouroceras obesum Flower 1943
†Valcouroceras seelyi Ruedemann 1906
†Valcouroceras tenuiseptum Ruedemann 1906
G. †Valkyrioceras Kröger and Aubrechtová 2019
+
†Valkyrioceras dalecarlia Kröger and Aubrechtová 2019
G. †Xainzanoceras
Or. †Tarphycerida Flower and Kummel, Jr. 1950
+
G. †Bateroboceras
G. †Bodieceras
G. †Craftonoceras
Fm. †Estonioceratidae Hyatt 1900
+
G. †Aethoceras Teichert and Glenister 1954
G. †Alaskoceras Miller and Kummel 1945
G. †Aphetoceras Hyatt 1894
+
†Aphetoceras americanum Hyatt 1894
†Aphetoceras attenuatum Hyatt 1894
†Aphetoceras boreale Hyatt 1894
†Aphetoceras evolutum Ulrich et al. 1942
†Aphetoceras farnsworthi Billings 1861
†Aphetoceras oderi Ulrich et al. 1942
†Aphetoceras ozarkensis Cullison 1944
†Aphetoceras ruedemanni Ulrich et al. 1942
†Aphetoceras subcostulatum Ulrich et al. 1942
G. †Deltoceras Hyatt 1894
+
†Deltoceras capax Ulrich et al. 1942
†Deltoceras planum Hyatt 1894
†Deltoceras vaningeni Ruedemann 1906
G. †Eichwaldoceras Balashov 1955
G. †Pycnoceras Hyatt 1894
+
†Pycnoceras adamsense Stait 1983
†Pycnoceras apertum Hyatt 1894
†Pycnoceras calciferiforme Hyatt 1894
†Pycnoceras clausum Ulrich et al. 1942
†Pycnoceras rotundatum Ulrich et al. 1942
G. †Shumardoceras Ulrich and Foerste 1936
+
†Shumardoceras complanatum Shumard 1863
†Shumardoceras fragile Ulrich et al. 1942
†Shumardoceras taneyense Ulrich et al. 1942
G. †Tragoceras Remelé 1890
Invalid names: Deltoceratidae Ulrich et al. 1942 [synonym]
G. †Inclytoceras
G. †Magdoceras
Fm. †Ophidioceratidae Hyatt 1894
+
G. †Pakrioceras
Fm. †Tarphyceratidae Hyatt 1894
+
G. †Campbelloceras Ulrich and Foerste 1936
+
†Campbelloceras brevicameratum Ulrich et al. 1942
†Campbelloceras hyatti Ulrich et al. 1942
†Campbelloceras mcgerriglei Ulrich et al. 1942
†Campbelloceras rotundum Hyatt 1894
†Campbelloceras simplex Cullison 1944
†Campbelloceras virginianus Hyatt 1894
G. †Centrotarphyceras Ulrich and Foerste 1936
+
†Centrotarphyceras apheusi Ulrich et al. 1942
†Centrotarphyceras bidgei Ulrich et al. 1942
†Centrotarphyceras imperator Billings 1861
†Centrotarphyceras macdonaldi Hyatt 1894
†Centrotarphyceras powersi Ulrich et al. 1942
†Centrotarphyceras seelyi Whitfield 1886
†Centrotarphyceras subundosum Ulrich et al. 1942
†Centrotarphyceras yellvillense Ulrich et al. 1942
G. †Cycloplectoceras Ulrich et al. 1942
+
†Cycloplectoceras funatum Ulrich et al. 1942
†Cycloplectoceras miseri Ulrich et al. 1942
G. †Eurystomites Schröder 1891
+
†Eurystomites accelerans Ruedemann 1906
†Eurystomites amplectens Ruedemann 1906
†Eurystomites avensis Ulrich et al. 1942
†Eurystomites bolarensis Ulrich et al. 1942
†Eurystomites ferox Billings 1861
†Eurystomites gibbosum Hyatt 1894
†Eurystomites kelloggi Whitfield 1886
†Eurystomites undatum Hall 1847
G. †Falcilituites Remele 1886
G. †Moreauoceras Cullison 1944
G. †Pilotoceras Cullison 1944
G. †Pionoceras Ulrich et al. 1942
+
†Pionoceras peachi Evans 2011
†Pionoceras pompanium Billings 1862
†Pionoceras pomponium Billing 1862
†Pionoceras smithvillense Ulrich et al. 1942
†Pionoceras swartzi Ulrich et al. 1942
†Pionoceras vokesi Ulrich et al. 1942
G. †Planctoceras Schröder 1891
G. †Sweetoceras Stumbur 1962
+
†Discoceras boreale amplicameratum Sweet 1958
†Sweetoceras boreale Sweet 1958
G. †Tarphyceras Hyatt 1894
+
†Tarphyceras apollo Billings 1861
†Tarphyceras aucoini Hyatt 1894
†Tarphyceras chadwickense Ulrich et al. 1942
†Tarphyceras champlainense Whitfield 1886
†Tarphyceras clarkei Ruedemann 1906
†Tarphyceras convolvens Angelin and Lindstrom 1880
†Tarphyceras extensum Hyatt 1894
†Tarphyceras multicameratum Ruedemann 1906
†Tarphyceras palinurus Billings 1861
†Tarphyceras perkinsi Whitfield 1897
†Tarphyceras prematurum Hyatt 1894
Fm. †Trocholitidae Chapman 1857
+
G. †Curtoceras Ulrich et al. 1942
+
†Curtoceras abditus Kröger and Aubrechtova 2017
†Curtoceras billingsi Foerste 1938
†Curtoceras eatoni Whitfield 1886
+
Invalid names: Schroederoceras cassinense Whitfield 1886 [synonym]
†Curtoceras internastriatum Whitfield 1886
†Curtoceras minganense Foerste 1938
G. †Discoceras Barrande 1867
+
†Discoceras amtjaernense Kröger and Aubrechtová 2019
†Discoceras angulatum Saemann 1852
†Discoceras antiquissima Eichwald 1842
†Discoceras antiquissimus Roemer 1861
†Discoceras arctuatum Lossen 1860
†Discoceras depressum Sweet 1958
†Discoceras fleischeri Sweet 1958
†Discoceras hyatti Strand 1934
†Discoceras idaense Teichert and Glenister 1962
†Discoceras ievesense Balaschov 1953
†Discoceras nilssoni Kröger and Aubrechtová 2019
†Discoceras rarospira Eichwald 1860
†Discoceras roemeri Strand 1934
†Discoceras saemanni Hyatt 1894
†Discoceras siljanense Kröger et al. 2011
†Discoceras tubulatum Hyatt 1894
†Discoceras vasalemmense Balaschov 1953
G. †Graftonoceras Foerste 1925
G. †Hardmanoceras Teichert and Glenister 1952
+
†Hardmanoceras chrysanthimum Kobayashi 1959
†Hardmanoceras lobatum Teichert and Glenister 1952
G. †Litoceras Hyatt 1883
+
†Litoceras calciferum Billings 1865
†Litoceras versutum Billings 1865
†Litoceras whiteavsi Hyatt 1894
G. †Paradiscoceras Barskov 1972
+
†Paradiscoceras dissitum Stait et al. 1985
†Paradiscoceras orientale Barskov 1972
G. †Plectolites
G. †Schroederoceras Hyatt 1894
+
†Schroederoceras angulatum Saemann 1852
†Schroederoceras saemanni Hyatt 1894
†Schroederoceras tubulatum Hyatt 1894
G. †Trocholites Conrad 1838
+
†Trocholites ammonius Conrad 1838
†Trocholites contractus Schroeder 1891
†Trocholites depressus Eichwald 1860
†Trocholites faberi Foerste 1929
†Trocholites fugax Babin and Gutiérrez-Marco 1992
+
Invalid names: Lituites primulus Barrande 1865 [synonym]
†Trocholites gennadii Kröger and Aubrechtova 2017
†Trocholites gracilis Flower 1943
†Trocholites hospes Remele 1880
†Trocholites internestriatus Whitfield 1886
†Trocholites ruedemanni Flower 1943
G. †Trocholitoceras Hyatt 1894
+
†Trocholitoceras bevani Ulrich et al. 1942
†Trocholitoceras juvenicostatum Ulrich et al. 1942
†Trocholitoceras latum Ulrich et al. 1942
†Trocholitoceras philipsburgense Ulrich et al. 1942
†Trocholitoceras walcotti Hyatt 1894
G. †Wichitoceras Ulrich et al. 1942
+
†Wichitoceras chadwickense Ulrich et al. 1942
†Wichitoceras compressum Ulrich et al. 1942
†Wichitoceras crassum Ulrich et al. 1942
†Wichitoceras decipiens Ulrich et al. 1942
†Wichitoceras naylorense Ulrich et al. 1942
Invalid names: Discoceratidae Dzik 1984 [empty]
Fm. †Uranoceratidae Hyatt 1900
+
G. †Cliftonoceras Flower 1957
G. †Cumingsoceras Flower 1950
G. †Jolietoceras Foerste 1925
G. †Uranoceras Hyatt 1884
Diagnosis
No diagnoses are available