Cephalopoda - Ellesmerocerida - Ellesmeroceratidae
Alternative spelling: Clarkeoceras
Full reference: R. Ruedemann. 1905. The structure of some primitive cephalopods. New York State Museum Bulletin 80:296-341
Parent taxon: Ellesmeroceratidae according to B. Kröger and E. Landing 2007
See also Crick 1981, Flower 1964, Sepkoski 2002, Teichert et al. 1964 and Ulrich et al. 1943
Sister taxa: Albertoceras, Anhuiceras, Annoceras, Barnesoceras, Bassleroceras, Boreoceras, Botellusoceras, Bridgeoceras, Buehleroceras, Burenoceras, Caseoceras, Chabactoceras, Chepuloceras, Clelandoceras, Conocerina, Copiceras, Cumberloceras, Dakeoceras, Diaphoroceras, Dongshanoceras, Dyscritoceras, Ectenoceras, Ectenolites, Ellesmeroceras, Eoclarkoceras, Eoectenolites, Eorudolfoceras, Eremoceras, Hemichoanella, Keraiaceras, Lebetoceras, Levisoceras, Llanoceras, Loxochoanella, Meikeloceras, Muriceras, Oelandoceras, Oneoceratidae, Oneotoceras, Pachendoceras, Paradakeoceras, Purmanarcoceras, Quebecoceras, Robsonoceras, Shantungendoceras, Sinolebetoceras, Smithvilloceras, Stemtonoceras, Tanycameroceras, Ventroloboceras, Walcottoceras, Wolungoceras valcourense, Woosteroceras
Subtaxa: Clarkoceras affine Clarkoceras arcuatum Clarkoceras buttsi Clarkoceras calvini Clarkoceras cinctum Clarkoceras clelandi Clarkoceras confertum Clarkoceras corniculum Clarkoceras crassum Clarkoceras cuneatum Clarkoceras curvatum Clarkoceras expansum Clarkoceras gracile Clarkoceras huzzahense Clarkoceras inconstans Clarkoceras jasperense Clarkoceras lawrencense Clarkoceras levisense Clarkoceras luthei Clarkoceras luthei Clarkoceras magnisiphonatum Clarkoceras minneiskense Clarkoceras modestum Clarkoceras mohawkense Clarkoceras multicameratum Clarkoceras newtonwinchelli Clarkoceras parvisiphonatum Clarkoceras rectum Clarkoceras ruedemanni Clarkoceras ruguliferum Clarkoceras subarcuatum Clarkoceras subcrassum Clarkoceras subrectum Clarkoceras vicinum Clarkoceras whitehallense
Ecology: nektobenthic carnivore
Distribution:
• Ordovician of Canada (3: Alberta, Quebec collections), United States (28: Iowa, Minnesota, Missouri, New York, Tennessee, Texas, Wisconsin)
• Tremadoc of Argentina (1), China (1), United States (2: Missouri, Virginia)
• Skullrockian of United States (4: New York, Tennessee)
Total: 39 collections including 69 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.