Cephalopoda - Oncocerida - Acleistoceratidae
Parent taxon: Acleistoceratidae according to C. Teichert et al. 1964
See also Sepkoski 2002 and Strand 1934
Sister taxa: Acleistoceras, Anomeioceras, Austinoceras, Byronoceras, Chadwickoceras, Clionyssiceras, Crateroceras, Ectocyrtoceras, Euryrizoceras, Galtoceras, Grimsbyoceras, Hercocyrtoceras, Paracleistoceras, Perioidanoceras, Poteriocerina, Rhomboceras, Slocomoceras, Streptoceras, Tumidoceras, Worthenoceras, Yunnanoceras
Subtaxa: Amphicyrtoceras benedictae
Ecology: fast-moving nektobenthic carnivore
Distribution:
• Silurian of Canada (12: Manitoba, Quebec, Québec collections), United States (6: Iowa, Wisconsin)
• Ordovician of Norway (1)
Total: 19 collections including 25 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.