Cephalopoda - Ammonitida - Polyptychitidae
Full reference: J. A. Jeletzky. 1965. Thorsteinssonoceras. A new craspeditid ammonitre from the Valanginian of Ellesmere Island, Arctic Archipelago. Geological Survey of Canada Bulletin 120:1-16
Parent taxon: Tolliinae according to P. Alsen 2006
See also Jeletzky 1965 and Sepkoski 2002
Sister taxa: Borealites, Homolsomites, Menjaites, Nikitinoceras, Peregrinoceras, Surites, Tollia, Virgatoptychites
Subtaxa: Thorsteinssonoceras ellesmerensis
Type: Thorsteinssonoceras ellesmerensis
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Canada (3: Nunavut collections), the Russian Federation (6), Svalbard and Jan Mayen (1)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.