Cephalopoda - Ceratitida - Clionitidae
Alternative combinations: Hannaoceras nodifer, Polycyclus nodifer
Full reference: A. Hyatt and J. P. Smith. 1905. The Triassic cephalopod genera of America. United States Geological Survey Professional Paper 40:1-394
Belongs to Sympolycyclus according to L. F. Spath 1951
See also Hyatt and Smith 1905, Smith 1927 and Tomlin 1931
Sister taxa: Sympolycyclus antiquus, Sympolycyclus gunningi, Sympolycyclus kellyi
Type specimen: Its type locality is Brock Mountain, 3 miles east of Madison's ranch (Trachyceras subzone), which is in a Tuvalian carbonate limestone in the Hosselkus Formation of California
Ecology: nektonic carnivore
Distribution:
• Triassic of Canada (1: British Columbia collection), Mexico (1), United States (1: California)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.