Cephalopoda - Oncocerida - Oncoceratidae
Parent taxon: Oncoceratidae according to B. Kröger et al. 2009
See also Crick 1981, Sepkoski 2002 and Teichert et al. 1964
Sister taxa: Asaphiceras, Beloitoceras, Centrorizoceras, Cyrtorizoceras, Dalecarlioceras, Digenuoceras, Dunleithoceras, Ehlersoceras, Ekwanoceras, Kentlandoceras, Laphamoceras, Loganoceras, Maelonoceras, Metarizoceras, Miamoceras, Neumatoceras, Oncoceras, Oocerina, Orthorizoceras, Paramiamoceras, Plesiorizosceras, Retizitteloceras, Richardsonoceroides, Rizoceras, Romingoceras, Scofieldoceras, Tshingizoceras, Vaupelia, Zittelloceras
Subtaxa: Richardsonoceras gastroscopium Richardsonoceras gerhardi Richardsonoceras goldmanni Richardsonoceras haelluddenense Richardsonoceras sinuososeptatum
Ecology: fast-moving nektobenthic carnivore
Distribution:
• Hunderum of Sweden (6 collections)
• Arenig of China (2)
• Ordovician of Canada (4: Northwest Territories, Nunavut, Quebec), China (16), Estonia (2), Norway (3), Sweden (4), United States (4: Illinois, Iowa, Wisconsin, Minnesota)
Total: 41 collections including 62 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.