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Ellesmerocerida

Cephalopoda - Ellesmerocerida

Synonymy list
YearName and author
1950Ellesmeroceratida Flower and Kummel, Jr. p. 606
1956Ellesmeroceratida Unklesbay and Young p. 483
1964Ellesmeroceratida Flower p. 28
1964Ellesmerocerida Teichert et al. p. 100
1981Ellesmerocerida Crick p. 227
2002Ellesmerocerida Sepkoski
2005Ellesmerocerida Evans p. 9
2005Ellesmerocerida Kröger and Mutvei
2011Ellesmerocerida Evans
2011Ellesmerocerida Kröger and Evans
2012Ellesmerocerida Kröger and Lefebvre
2013Ellesmerocerida Mutvei p. 172
2022Ellesmerocerida Pohle et al. p. 21

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
RankNameAuthor
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
orderEllesmerocerida()
orderEllesmerocerida()

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.

Or. †Ellesmerocerida Flower and Kummel, Jr. 1950
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Fm. †Acaroceratidae Chen et al. 1979
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G. †Acaroceras Chen et al. 1979
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Acaroceras endogastrum Chen et al. 1979
Acaroceras jianghsanense Chen and Qi 1981
Fm. †Balkoceratidae Flower 1964
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Balkoceras gracile Flower 1964
Fm. †Bathmoceratidae Gill 1871
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G. †Bathmoceras Barrande 1865
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Bathmoceras australe Teichert 1939
Bathmoceras complexum Barrande 1856
Bathmoceras llanvirnense Roberts 1884
Bathmoceras norvegicum Sweet 1958
Bathmoceras taichoutense Kröger and Lefebvre 2012
G. †Eothinoceras Ulrich et al. 1944
G. †Cyptendocerina Ulrich et al. 1944
Fm. †Ellesmeroceratidae Kobayashi 1934
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G. †Albertoceras Ulrich and Foerste 1936
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Albertoceras gracillimum Ulrich et al. 1944
Albertoceras minimum Ulrich et al. 1944
Albertoceras staufferi Ulrich et al. 1944
Albertoceras walcotti Ulrich and Foerste 1936
G. †Annoceras Flower 1964
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Annoceras costatum Flower 1964
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Invalid names: Annoceras elevatum Flower 1964 [synonym], Annoceras perobliquum Foerste 1964 [synonym], Ellesmeroceras angulatum Flower 1964 [synonym], Ellesmeroceras fusiforme Flower 1964 [synonym], Ellesmeroceras imbricatum Flower 1964 [synonym], Ellesmeroceras progressum Flower 1964 [synonym], Eremoceras magnum Flower 1964 [synonym], Eremoceras perseptatum Flower 1964 [synonym]
Annoceras multicameratum Flower 1964
Annoceras vernonense Ulrich et al. 1943
G. †Barnesoceras Flower 1964
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Barnesoceras clavatum Flower 1964
Barnesoceras expansum Flower 1964
Barnesoceras lamellosum Flower 1964
Barnesoceras percurvatum Flower 1964
Barnesoceras transversum Flower 1964
G. †Bassleroceras Ulrich and Foerste 1936
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Bassleroceras acinacellum Whitfield 1886
Bassleroceras alethes Billings 1865
Bassleroceras beekmanense Whitfield 1889
Bassleroceras bridgei Ulrich et al. 1944
Bassleroceras champlainense Kröger and Landing 2008
Bassleroceras dalevillense Ulrich et al. 1944
Bassleroceras kayi Ulrich et al. 1944
Bassleroceras kirbyi Whitfield 1889
Bassleroceras lasallense Ulrich et al. 1944
Bassleroceras perseus Billings 1865
Bassleroceras smithbasinense Kröger and Landing 2008
Bassleroceras tenuiculum Ulrich et al. 1944
Bassleroceras triangulum Kröger and Landing 2008
Bassleroceras vassarina Dwight 1884
G. †Boreoceras Miller and Youngquist 1947
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Boreoceras brevicameratum Miller and Youngquist 1947
Boreoceras cloudi Miller and Youngquist 1947
Boreoceras ovale Flower 1964
Boreoceras parvulum Miller and Youngquist 1947
Boreoceras washburni Miller and Youngquist 1947
G. †Botellusoceras Kröger and Mutvei 2005
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Botellusoceras torpense Kröger and Mutvei 2005
G. †Bridgeoceras Ulrich et al. 1943
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Bridgeoceras subannulatum Ulrich et al. 1943
G. †Buehleroceras Ulrich et al. 1943
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Buehleroceras apertum Ulrich et al. 1943
Buehleroceras compressum Ulrich et al. 1943
G. †Burenoceras Ulrich and Foerste 1931
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Burenoceras angulare Ulrich et al. 1943
Burenoceras compressum Ulrich et al. 1943
Burenoceras cornucopia Flower 1964
Burenoceras curticei Ulrich et al. 1943
Burenoceras dickhauti Ulrich et al. 1943
Burenoceras dilatatum Ulrich et al. 1943
Burenoceras expandum Ulrich and Foerste 1931
Burenoceras huzzahense Ulrich et al. 1943
Burenoceras minor Ulrich et al. 1943
Burenoceras muricoides Flower 1964
Burenoceras oneotense Ulrich et al. 1943
Burenoceras peramplum Ulrich et al. 1943
Burenoceras percompressum Ulrich et al. 1943
Burenoceras planiseptatum Ulrich et al. 1943
Burenoceras pumilum Ulrich et al. 1943
Burenoceras texanum Ulrich et al. 1943
Burenoceras undosum Ulrich et al. 1943
Burenoceras ungulatum Ulrich et al. 1943
G. †Caseoceras Ulrich et al. 1943
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Caseoceras conicum Ulrich et al. 1943
Caseoceras contractum Ulrich et al. 1943
Caseoceras holtedahli Foerste 1921
Caseoceras intermedium Ulrich et al. 1943
Caseoceras nitidum Ulrich et al. 1943
Caseoceras obesum Flower 1964
Caseoceras sequatchiense Ulrich et al. 1943
Caseoceras subconicum Ulrich et al. 1943
G. †Chepuloceras Unklesbay and Young 1956
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Chepuloceras inelegans Unklesbay and Young 1956
G. †Clarkoceras Ruedemann 1905
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Clarkoceras affine Ulrich et al. 1943
Clarkoceras arcuatum Ulrich et al. 1943
Clarkoceras buttsi Ulrich et al. 1943
Clarkoceras calvini Ulrich et al. 1943
Clarkoceras cinctum Ulrich et al. 1943
Clarkoceras clelandi Ulrich et al. 1943
Clarkoceras confertum Ulrich et al. 1943
Clarkoceras corniculum Sardeson 1896
Clarkoceras crassum Ulrich et al. 1943
Clarkoceras cuneatum Ulrich et al. 1943
Clarkoceras curvatum Ulrich et al. 1943
Clarkoceras expansum Ulrich et al. 1943
Clarkoceras gracile Ulrich et al. 1943
Clarkoceras huzzahense Ulrich et al. 1943
Clarkoceras inconstans Ulrich et al. 1943
Clarkoceras jasperense Ulrich et al. 1943
Clarkoceras lawrencense Ulrich et al. 1943
Clarkoceras levisense Ulrich et al. 1943
Clarkoceras luthei Calvin 1892
Clarkoceras luthei Ulrich et al. 1943
Clarkoceras magnisiphonatum Ulrich et al. 1943
Clarkoceras minneiskense Ulrich et al. 1943
Clarkoceras modestum Ulrich et al. 1943
Clarkoceras mohawkense Ulrich et al. 1943
Clarkoceras multicameratum Ulrich et al. 1943
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Invalid names: Clarkoceras claytonense Powell 1935 [synonym]
Clarkoceras parvisiphonatum Ulrich et al. 1943
Clarkoceras rectum Ulrich et al. 1943
Clarkoceras ruedemanni Flower 1964
Clarkoceras ruguliferum Ulrich et al. 1943
Clarkoceras subarcuatum Ulrich et al. 1943
Clarkoceras subcrassum Ulrich et al. 1943
Clarkoceras subrectum Ulrich et al. 1943
Clarkoceras vicinum Ulrich et al. 1943
Clarkoceras whitehallense Ulrich et al. 1943
G. †Clelandoceras Ulrich et al. 1944
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Clelandoceras elongatum Ulrich et al. 1944
Clelandoceras rarum Flower 1964
G. †Conocerina Ulrich and Foerste 1936
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Conocerina arrecta Ulrich et al. 1943
Conocerina bassleri Ulrich et al. 1943
Conocerina beani Ulrich et al. 1943
Conocerina brevis Ulrich and Foerste 1936
Conocerina magna Ulrich et al. 1943
Conocerina missouriensis Ulrich et al. 1943
Conocerina obliqua Ulrich et al. 1943
Conocerina raaschi Ulrich et al. 1943
Conocerina sublonga Ulrich et al. 1943
Conocerina unguloides Flower 1964
G. †Copiceras Ulrich et al. 1944
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Copiceras erectum Ulrich et al. 1944
G. †Cumberloceras Ulrich et al. 1943
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Cumberloceras buttsi Ulrich et al. 1943
Cumberloceras elwayense Ulrich et al. 1943
G. †Dakeoceras Ulrich and Foerste 1931
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Dakeoceras champlainense Kröger and Landing 2007
Dakeoceras corniculum Ulrich et al. 1943
Dakeoceras dilatatum Ulrich et al. 1943
Dakeoceras divergens Ulrich et al. 1943
Dakeoceras gracilis Flower 1964
Dakeoceras harrisi Flower 1964
Dakeoceras magnisiphonatum Ulrich et al. 1943
Dakeoceras mutabile Flower 1964
Dakeoceras normale Ulrich and Foerste 1931
Dakeoceras perretrorsum Ulrich et al. 1943
Dakeoceras retrorsum Ulrich et al. 1943
Dakeoceras reversum Ulrich et al. 1943
Dakeoceras subcurvatum Ulrich and Foerste 1931
Dakeoceras undulatum Ulrich et al. 1943
G. †Diaphoroceras Ulrich et al. 1944
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Diaphoroceras avaense Ulrich et al. 1944
Diaphoroceras belli Ulrich et al. 1944
Diaphoroceras buffaloense Ulrich et al. 1944
G. †Dyscritoceras Ulrich and Foerste 1936
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Dyscritoceras dictys Billings 1865
Dyscritoceras metellus Billings 1865
Dyscritoceras oxfordense Ulrich et al. 1944
G. †Ectenoceras Ulrich and Foerste 1936
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Ectenoceras arbucklense Ulrich et al. 1943
Ectenoceras arcuosutum Ulrich et al. 1943
Ectenoceras chepultepecense Ulrich et al. 1943
Ectenoceras compressum Ulrich et al. 1943
Ectenoceras curvatum Kobayashi 1931
Ectenoceras ellipticum Ulrich et al. 1943
Ectenoceras exile Ulrich et al. 1943
Ectenoceras gracile Cleland 1903
Ectenoceras higdonense Ulrich et al. 1943
Ectenoceras laqueatum Ulrich et al. 1943
Ectenoceras longum Ulrich et al. 1943
Ectenoceras millsi Ulrich et al. 1943
Ectenoceras obliquum Ulrich et al. 1943
Ectenoceras pergracile Ulrich et al. 1943
Ectenoceras perobliquum Ulrich et al. 1943
Ectenoceras ruedemanni Kobayashi 1933
Ectenoceras subcurvatum Kobayashi 1933
Ectenoceras subcurvatum Ulrich et al. 1943
Ectenoceras subgracile Ulrich and Foerste 1936
G. †Ectenolites Ulrich and Foerste 1935
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Ectenolites clelandi Ulrich et al. 1944
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Invalid names: Bassleroceras clelandi Ulrich et al. 1944 [synonym], Ectenolites penecilin Flower 1964 [synonym]
Ectenolites extensus Flower 1964
Ectenolites primus Flower 1964
Ectenolites sinuatus Flower 1964
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Invalid names: Ectenolites simplex Flower 1964 [synonym]
Ectenolites subgracilis Ulrich and Foerste 1935
G. †Ellesmeroceras Foerste 1921
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Ellesmeroceras bridgei Flower 1941
Ellesmeroceras elongatum Kobayashi 1931
Ellesmeroceras expansum Flower 1941
Ellesmeroceras higdonense Ulrich et al. 1944
Ellesmeroceras hotchkissi Ulrich et al. 1944
Ellesmeroceras indomitum Kröger and Landing 2007
Ellesmeroceras luthei Ulrich et al. 1944
Ellesmeroceras scheii Foerste 1921
Ellesmeroceras thomasi Ulrich et al. 1944
Ellesmeroceras winonicum Sardeson 1896
Invalid names: Ellesmeroceras (Metaellesmeroceras) Flower 1956 [invalid subgroup]
G. †Eorudolfoceras Kröger and Landing 2007
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Eorudolfoceras antiquum Flower 1964
Rudolfoceras praenuntium Flower 1964
G. †Eremoceras Hyatt 1884
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Eremoceras conoidale Ulrich et al. 1943
Eremoceras difficile Ulrich et al. 1943
Eremoceras gasconadense Ulrich et al. 1943
Eremoceras luthei Ulrich et al. 1943
Eremoceras marylandicum Ulrich et al. 1943
Eremoceras perdilatum Ulrich et al. 1943
Eremoceras subrectum Ulrich et al. 1943
Eremoceras syphax Billings 1865
Eremoceras teres Ulrich et al. 1943
Eremoceras vernonense Ulrich et al. 1943
G. †Hemichoanella Teichert and Glenister 1954
G. †Lebetoceras Teichert and Glenister 1954
G. †Levisoceras Foerste 1925
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Levisoceras arctedorsatum Ulrich et al. 1943
Levisoceras belli Ulrich et al. 1943
Levisoceras complanatum Ulrich et al. 1943
Levisoceras constrictum Ulrich et al. 1943
Levisoceras contractum Flower 1964
Levisoceras curvatum Ulrich et al. 1943
Levisoceras edwardsi Ulrich et al. 1943
Levisoceras ellipticum Ulrich et al. 1943
Levisoceras instabile Ulrich et al. 1943
Levisoceras mercurius Billings 1865
Levisoceras obliquatum Ulrich et al. 1943
Levisoceras percurvatum Ulrich et al. 1943
Levisoceras raaschi Ulrich et al. 1943
Levisoceras subgracile Ulrich et al. 1943
Levisoceras transitum Ulrich et al. 1943
G. †Llanoceras Flower 1964
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Llanoceras gracile Flower 1964
G. †Loxochoanella Teichert and Glenister 1954
G. †Muriceras Flower 1964
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Muriceras anomalum Flower 1964
Muriceras curviseptatum Flower 1964
Muriceras gracile Flower 1964
Muriceras hebetum Flower 1964
Muriceras micromurus Flower 1964
Muriceras moderatum Flower 1964
Muriceras murus Flower 1964
Muriceras obscurum Flower 1964
G. †Oelandoceras Foerste 1932
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G. †Oneotoceras Ulrich 1926
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Oneotoceras curvatum Ulrich et al. 1943
Oneotoceras divaricatum Ulrich et al. 1943
Oneotoceras extremum Ulrich et al. 1943
Oneotoceras husseyi Ulrich et al. 1943
Oneotoceras impressum Ulrich et al. 1943
Oneotoceras loculosum Hall 1861
Oneotoceras madisonense Ulrich et al. 1943
Oneotoceras magnum Ulrich et al. 1943
Oneotoceras percurvatum Ulrich et al. 1943
Oneotoceras wisconsinense Ulrich et al. 1943
G. †Pachendoceras Ulrich and Foerste 1936
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Pachendoceras brevicameratum Unklesbay and Young 1956
Pachendoceras confertum Ulrich et al. 1944
Pachendoceras parvum Unklesbay and Young 1956
G. †Quebecoceras Foerste 1925
G. †Robsonoceras Ulrich and Foerste 1933
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Robsonoceras manitouense Ulrich et al. 1944
Robsonoceras robsonense Walcott 1924
G. †Shantungendoceras Sun 1937
G. †Smithvilloceras Ulrich et al. 1943
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Smithvilloceras thompsoni Ulrich et al. 1943
G. †Stemtonoceras Ulrich and Foerste 1936
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Stemtonoceras elongatum Ulrich and Foerste 1936
G. †Ventroloboceras Teichert and Glenister 1954
G. †Walcottoceras Ulrich and Foerste 1936
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Walcottoceras monsense Walcott 1924
Walcottoceras obliquum Ulrich et al. 1944
G. †Woosteroceras Ulrich et al. 1944
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Woosteroceras chepultepecense Unklesbay and Young 1956
Woosteroceras cherokeense Ulrich et al. 1944
Woosteroceras spirale Flower 1964
Woosteroceras trempealeauense Ulrich et al. 1944
Invalid names: Oneoceratidae Dzik 1984 [invalid subgroup], Wolungoceras valcourense Flower 1964 [nomen dubium]
Fm. †Eothinoceratidae Ulrich et al. 1944
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G. †Conothinoceras Chen and Teichert 1987
G. †Desioceras Cecioni 1953
G. †Margaritoceras Cecioni and Flower 1985
G. †Protothinoceras Chen and Teichert 1987
G. †Sacerdosoceras Evans 2005
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Sacerdosoceras promus Evans 2005
G. †Saloceras Evans 2005
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Saloceras chinianense Thoral 1935
Saloceras murvielense Kröger and Evans 2011
Saloceras pradense Thoral 1935
Saloceras sericeum Salter 1865
Fm. †Huaiheceratidae Zou and Chen 1979
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G. †Huaiheceras Zou and Chen 1979
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Huaiheceras hanjiaense Zou and Chen 1979
G. †Zhuibianoceras Chen and Qi 1981
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Zhuibianoceras conicum Chen and Qi 1981
Fm. †Phthanoncoceratidae Evans and King 1990
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G. †Phthanoncoceras Evans and King 1990
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Phtanoncoceras oelandense Evans and King 1990
G. †Valhalloceras Evans and King 1990
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Valhalloceras floweri Evans and King 1990
Fm. †Plectronoceratidae Kobayashi 1935
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G. †Eburoceras Zou and Chen 1979
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Invalid names: Paraplectronoceras Qi and Chen 1979 [synonym], Pseudendoceras Chen and Zou 1979 [synonym]
G. †Lunanoceras Chen and Teichert 1983
G. †Multicameroceras Kobayashi 1933
G. †Palaeoceras Flower 1954
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Palaeoceras mutabile Flower 1954
Palaeoceras undulatum Flower 1964
G. †Plectronoceras Ulrich and Foerste 1933
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Plectronoceras cambria Walcott 1905
Plectronoceras exile Flower 1964
Plectronoceras liaotungense Kobayashi 1935
G. †Ruthenoceras Korde 1954
Fm. †Protocycloceratidae Kobayashi 1935
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G. †Bakeroceras Hook and Flower 1977
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Bakeroceras wahwahense Hook and Flower 1977
G. †Catoraphiceras Ulrich and Foerste 1936
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Catoraphiceras colon White 1874
Catoraphiceras cushingi Ulrich et al. 1944
Catoraphiceras ibexense Hook and Flower 1977
Catoraphiceras lobatum Ulrich and Foerste 1936
Catoraphiceras osagense Ulrich et al. 1944
Catoraphiceras pearsonae Hook and Flower 1977
Catoraphiceras resseri Ulrich et al. 1944
Catoraphiceras sinuatum Hook and Flower 1977
Catoraphiceras sordidum Billings 1859
Catoraphiceras staceyae Hook and Flower 1977
G. †Catoraphinoceras Ulrich and Foerste 1936
G. †Cyptendoceras Ulrich and Foerste 1936
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Cyptendoceras kirki Flower 1964
Cyptendoceras magnus Cullison 1944
Cyptendoceras rhythmicum Flower 1964
Cyptendoceras ruedemanni Ulrich and Foerste 1936
Invalid names: Cyptendoceras whitfieldi Ulrich et al. 1944 [nomen dubium]
G. †Diastoloceras Teichert and Glenister 1954
G. †Endocycloceras Ulrich et al. 1944
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Endocycloceras gracile Flower 1964
Endocycloceras legorense Ulrich et al. 1944
Endocycloceras perannulatum Ulrich et al. 1944
Endocycloceras subcurvatum Ulrich et al. 1944
Endocycloceras wilsonae Ulrich et al. 1944
G. †Kyminoceras Teichert and Glenister 1954
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Kyminoceras kottlowskii Hook and Flower 1977
G. †Notocycloceras Teichert and Glenister 1954
G. †Protocycloceras Hyatt 1900
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Protocycloceras abnorme Ulrich et al. 1944
Protocycloceras affine Ulrich et al 1944
Protocycloceras arkansasense Ulrich et al. 1944
Protocycloceras catulus Billings 1865
Protocycloceras doniphonense Ulrich et al. 1944
Protocycloceras furtivum Billings 1865
Protocycloceras geronticum Ulrich et al. 1944
Protocycloceras lamarcki Billings 1859
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Invalid names: Protocycloceras becki Billings 1859 [synonym], Protocycloceras whitfieldi Ruedemann 1906 [synonym], Rhabdocycloceras floweri Zhuravleva 1994 [synonym]
Protocycloceras landmarcki Billings 1859
Protocycloceras levisense Ulrich et al. 1944
Protocycloceras manitouense Ulrich et al. 1944
Protocycloceras mendax Billings 1859
Protocycloceras odenvillense Ulrich et al. 1944
Protocycloceras ordinatum Billings 1865
Protocycloceras philipsburgense Ulrich et al. 1944
Protocycloceras rushense McChesney 1859
Protocycloceras smithvillense Ulrich et al. 1944
Protocycloceras xerxes Billings 1865
Invalid names: Rhabdocycloceras Zhuravleva 1994 [synonym]
Invalid names: Rhabdocycloceratidae Zhuravleva 1994 [synonym]
Fm. †Rioceratidae Kröger and Evans 2011
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G. †Felinoceras Kröger and Evans 2011
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Felinoceras constrictum Kröger and Evans 2011
G. †Rioceras Flower 1964
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Rioceras consuetum Sardeson 1896
Rioceras dartoni Flower 1964
Rioceras depressum Flower 1964
Rioceras escandei Thoral 1935
Rioceras expansum Flower 1964
Rioceras fusiforme Flower 1964
Rioceras lobatum Flower 1964
Rioceras nondescriptum Flower 1964
Rioceras tubulare Flower 1964
Rioceras wellsi Flower 1964
Fm. †Rudolfoceratidae Ulrich et al. 1944
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G. †Ectocycloceras Ulrich and Foerste 1936
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Ectocycloceras cataline Billings 1865
Ectocycloceras cato Billings 1865
Ectocycloceras levisense Ulrich et al. 1944
G. †Rudolfoceras Ulrich et al. 1944
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Rudolfoceras autolycus Billings 1862
Rudolfoceras cornuoryx Whitfield 1886
Rudolfoceras cornuoryx Whitfield 1886
Rudolfoceras keadyi Hook and Flower 1977
Rudolfoceras kindlei Ulrich et al. 1944
Rudolfoceras russelli Hook and Flower 1977
Rudolfoceras subarcuatum Ulrich et al. 1944
Fm. †Shideleroceratidae Flower 1946
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G. †Shideleroceras Flower and Foerste 1946
G. †Vassaroceras Ulrich et al. 1944
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Vassaroceras henrietta Dwight 1884
Invalid names: Cyrtocerinina Flower 1964 [empty], Ellesmeroceratina Flower 1950 [empty], Plectronoceratina Flower 1964 [empty]
Diagnosis
ReferenceDiagnosis
B. Kröger and H. Mutvei 2005Small cyrto-, ortho- and gomphoceracones, usually laterally compressed or rounded in cross-section, mostly with short chambers. Siphuncle marginal or submarginal, mostly ventral, comparatively wide, sometimes with diaphragms. Siphuncular segments concave with largest diameter at septal necks. Connecting ring of a thick spherulitic–prismatic outer layer. Multiple paired muscle scars located at base of living chamber.