Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

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
1988Ellesmerocerida Wade
2002Ellesmerocerida Sepkoski
2005Ellesmerocerida Evans p. 9
2005Ellesmerocerida Kröger and Mutvei
2011Ellesmerocerida Evans
2011Ellesmerocerida Kröger and Evans
2012Ellesmerocerida Kröger and Lefebvre
2013Ellesmerocerida Mutvei p. 172
2019Ellesmeroceratida King and Evans p. 76
2022Ellesmerocerida Pohle et al. p. 21

Is something missing? Join the Paleobiology Database and enter the data

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
show all | hide all
Fm. †Acaroceratidae Chen et al. 1979
+
G. †Acaroceras Chen et al. 1979
+
†Acaroceras endogastrum Chen et al. 1979
†Acaroceras jianghsanense Chen and Qi 1981
Fm. †Balkoceratidae Flower 1964
+
+
†Balkoceras gracile Flower 1964
Fm. †Bathmoceratidae Gill 1871
+
G. †Bathmoceras Barrande 1865
+
†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
+
G. †Albertoceras Ulrich and Foerste 1936
+
†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
+
†Annoceras costatum Flower 1964
+
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
+
†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
+
†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
+
†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
+
†Botellusoceras torpense Kröger and Mutvei 2005
G. †Bridgeoceras Ulrich et al. 1943
+
†Bridgeoceras subannulatum Ulrich et al. 1943
G. †Buehleroceras Ulrich et al. 1943
+
†Buehleroceras apertum Ulrich et al. 1943
†Buehleroceras compressum Ulrich et al. 1943
G. †Burenoceras Ulrich and Foerste 1931
+
†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
+
†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
+
†Chepuloceras inelegans Unklesbay and Young 1956
G. †Clarkoceras Ruedemann 1905
+
†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 Ulrich et al. 1943
†Clarkoceras luthei Calvin 1892
†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
+
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
+
†Clelandoceras elongatum Ulrich et al. 1944
†Clelandoceras rarum Flower 1964
G. †Conocerina Ulrich and Foerste 1936
+
†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
+
†Copiceras erectum Ulrich et al. 1944
G. †Cumberloceras Ulrich et al. 1943
+
†Cumberloceras buttsi Ulrich et al. 1943
†Cumberloceras elwayense Ulrich et al. 1943
G. †Dakeoceras Ulrich and Foerste 1931
+
†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
+
†Diaphoroceras avaense Ulrich et al. 1944
†Diaphoroceras belli Ulrich et al. 1944
†Diaphoroceras buffaloense Ulrich et al. 1944
G. †Dyscritoceras Ulrich and Foerste 1936
+
†Dyscritoceras dictys Billings 1865
†Dyscritoceras metellus Billings 1865
†Dyscritoceras oxfordense Ulrich et al. 1944
G. †Ectenoceras Ulrich and Foerste 1936
+
†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
+
†Ectenolites clelandi Ulrich et al. 1944
+
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
+
Invalid names: Ectenolites simplex Flower 1964 [synonym]
†Ectenolites subgracilis Ulrich and Foerste 1935
G. †Ellesmeroceras Foerste 1921
+
†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
+
†Eorudolfoceras antiquum Flower 1964
†Rudolfoceras praenuntium Flower 1964
G. †Eremoceras Hyatt 1884
+
†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
+
†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
+
†Llanoceras gracile Flower 1964
G. †Loxochoanella Teichert and Glenister 1954
G. †Muriceras Flower 1964
+
†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
+
G. †Oneotoceras Ulrich 1926
+
†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
+
†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
+
†Robsonoceras manitouense Ulrich et al. 1944
†Robsonoceras robsonense Walcott 1924
G. †Shantungendoceras Sun 1937
G. †Smithvilloceras Ulrich et al. 1943
+
†Smithvilloceras thompsoni Ulrich et al. 1943
G. †Stemtonoceras Ulrich and Foerste 1936
+
†Stemtonoceras elongatum Ulrich and Foerste 1936
G. †Ventroloboceras Teichert and Glenister 1954
G. †Walcottoceras Ulrich and Foerste 1936
+
†Walcottoceras monsense Walcott 1924
†Walcottoceras obliquum Ulrich et al. 1944
G. †Woosteroceras Ulrich et al. 1944
+
†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
+
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
+
†Sacerdosoceras promus Evans 2005
G. †Saloceras Evans 2005
+
†Saloceras chinianense Thoral 1935
†Saloceras murvielense Kröger and Evans 2011
†Saloceras pradense Thoral 1935
†Saloceras sericeum Salter 1865
Fm. †Huaiheceratidae Zou and Chen 1979
+
G. †Huaiheceras Zou and Chen 1979
+
†Huaiheceras hanjiaense Zou and Chen 1979
G. †Zhuibianoceras Chen and Qi 1981
+
†Zhuibianoceras conicum Chen and Qi 1981
Fm. †Phthanoncoceratidae Evans and King 1990
+
G. †Phthanoncoceras Evans and King 1990
+
†Phtanoncoceras oelandense Evans and King 1990
G. †Valhalloceras Evans and King 1990
+
†Valhalloceras floweri Evans and King 1990
Fm. †Plectronoceratidae Kobayashi 1935
+
G. †Eburoceras Zou and Chen 1979
+
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
+
†Palaeoceras mutabile Flower 1954
†Palaeoceras undulatum Flower 1964
G. †Plectronoceras Ulrich and Foerste 1933
+
†Plectronoceras cambria Walcott 1905
†Plectronoceras exile Flower 1964
†Plectronoceras liaotungense Kobayashi 1935
G. †Ruthenoceras Korde 1954
Fm. †Protocycloceratidae Kobayashi 1935
+
G. †Bakeroceras Hook and Flower 1977
+
†Bakeroceras wahwahense Hook and Flower 1977
G. †Catoraphiceras Ulrich and Foerste 1936
+
†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 resseri Ulrich et al. 1944
†Catoraphiceras sordidum Billings 1859
G. †Catoraphinoceras Ulrich and Foerste 1936
G. †Cyptendoceras Ulrich and Foerste 1936
+
†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
+
†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
+
†Kyminoceras kottlowskii Hook and Flower 1977
G. †Notocycloceras Teichert and Glenister 1954
G. †Protocycloceras Hyatt 1900
+
†Protocycloceras abnorme 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
+
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
+
G. †Felinoceras Kröger and Evans 2011
+
†Felinoceras constrictum Kröger and Evans 2011
G. †Rioceras Flower 1964
+
†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
+
G. †Ectocycloceras Ulrich and Foerste 1936
+
†Ectocycloceras cataline Billings 1865
†Ectocycloceras cato Billings 1865
†Ectocycloceras levisense Ulrich et al. 1944
G. †Rudolfoceras Ulrich et al. 1944
+
†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
+
G. †Shideleroceras Flower and Foerste 1946
G. †Vassaroceras Ulrich et al. 1944
+
†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.
Measurements
No measurements are available
Composition: aragoniteo
Grouping: solitaryo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivorec
Vision: well-developedc
Created: 2005-10-06 14:32:52
Modified: 2007-09-07 11:44:36
Source: o = order, c = class
References: Aberhan et al. 2004, Kiessling 2004

Age range: base of the Skullrockian to the top of the Miocene or 488.90000 to 5.33300 Ma

Collections (357 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Furongian497.0 - 486.85China (Zhejiang) Ectenolites primus, Ectenolites penecilin, Zhuibianoceras conicum, Huaiheceras hanjiaense, Acaroceras endogastrum, Acaroceras jianghsanense (233233)
Furongian497.0 - 486.85China (Shandong) Cyrtoceras cambria (157404)
Taoyuanian - Niuchehean495.2 - 486.85China (Zhejiang) Acaroceras xiyangshanensis, Acaroceras rectoconum, Acaroceras duibianense, Antacaroceras changshanense, Ectenolites longicollum, Walcottoceras pauciannulatum (125669)
Niuchehean491.0 - 486.85China (Hunan) Chabactoceras ciliense, Huaiheceras hunanense (107333)
Niuchehean491.0 - 486.85China (Zhejiang) Acaroceras magnitubulatum, Acaroceras densum, Acaroceras dadoushanense, Acaroceras duibianense, Acaroceras minus, Acaroceras minysiphonatum, Acaroceras elongatum, Acaroceras liantangense, Anhuiceras elongatum, Anhuiceras duibianense, Anhuiceras distenoseptum, Antacaroceras exogastrum, Antacaroceras fengzuense, Antacaroceras amore, Antacaroceras irregulare, Dongshanoceras jiangshanense, Ectenolites abnormis, Ectenolites sinensis, Ectenolites longiconica, Ectenolites mirabilis, Parapalaeoceras endogastrum, Parapalaeoceras sinensis, Walcottoceras delicatum, Zhuibianoceras duibianense, Zhuibianoceras zhejiangense, Zhuibianoceras pansydum, Ectenolites primus, Ectenolites penecilin, Zhuibianoceras conicum, Huaiheceras hanjiaense, Acaroceras endogastrum (125704)
Trempealeauan490.2 - 486.85USA (Texas) Plectronoceras exile, Palaeoceras undulatum, Palaeoceras mutabile, Balkoceras gracile, Ectenolites primus (88784)
Skullrockian488.9 - 483.4Canada (Alberta) Ellesmeroceras robsonensis, Endoceras monsensis (157027)
Skullrockian488.9 - 483.4United Kingdom (Scotland) Dakeoceras sp., Ellesmeroceras sp. (188569) Ellesmeroceras sp., Ellesmeroceratidae indet. (188583)
Skullrockian488.9 - 483.4USA (New York) Annoceras costatum (87456 87523) Annoceras costatum, Annoceras multicameratum, Clarkoceras ruedemanni, Ectenolites clelandi, Ectenolites sinuatus, Ectenolites extensus, Eorudolfoceras sp., Eorudolfoceras antiquum, Eremoceras teres (87318) Annoceras costatum, Dakeoceras champlainense (89489) Annoceras costatum, Eorudolfoceras sp. (87524) Annoceras costatum, Eorudolfoceras sp., Eorudolfoceras antiquum (87451) Bassleroceras clelandi, Eorudolfoceras sp., Eorudolfoceras antiquum (87320) Dakeoceras gracilis (87319) Dakeoceras harrisi (88873) Dakeoceras sp., Caseoceras obesum (88887) Ellesmeroceras sp. (87454)
Skullrockian - Stairsian488.9 - 481.7USA (Tennessee) Burenoceras peramplum (189308) Burenoceras ungulatum, Clarkoceras parvisiphonatum (189321) Clarkoceras buttsi, Cumberloceras buttsi (189330) Ectenoceras millsi (189363) Levisoceras instabile (189371) Oneotoceras percurvatum (189395)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Soudleyan - Marshbrookian458.2 - 454.0China (HeBei) Protocycloceras sp. (7986)
Longvillian - Marshbrookian457.2 - 454.0China (AnHui) Protocycloceras sp. (7850)
Richmondian - Ashgill449.6 - 443.1USA (Ohio) Shideleroceras sp. (394)
Ashgill449.5 - 443.1USA (Indiana) Shideleroceras gracile (5325)
Desmoinesian312.8 - 306.0USA (Pennsylvania) Orthoceras rushense (184079 184098)
Missourian306.0 - 303.7USA (Ohio) Orthoceras rushense (175100 175101)
Missourian306.0 - 303.7USA (Missouri) Orthoceras rushense (237767)
Missourian306.0 - 303.7USA (Pennsylvania) Orthoceras rushense (184103 184105)
Virgilian303.7 - 298.9USA (Ohio) Orthoceras rushense (71993)
Miocene23.04 - 5.333France (Vaucluse) Palaeoceras sp. (201497)