Cephalopoda - Ammonitida - Polyptychitidae
Alternative spelling: Olcostephanus (Simbirskites)
Synonym: Californiceras
Parent taxon: Simbirskitinae according to P. Alsen 2006
See also Imlay 1960, Sepkoski 2002, Stanton 1895, Whitehouse 1926, Whitehouse 1927 and Wright et al. 1996
Sister taxon: Hollisites
Subtaxa: Simbirskites (Craspedodiscus) Simbirskites (Speetoniceras) Simbirskites broadi Simbirskites decheni Simbirskites lecontei Simbirskites morvenae
Type: Ammonites decheni
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Australia (2 collections), Canada (10: British Columbia, Northwest Territories, Yukon), Georgia (1), Greenland (5), Poland (1), the Russian Federation (3), Svalbard and Jan Mayen (2), the United Kingdom (1), United States (9: Alaska, California, Oregon)
Total: 34 collections including 44 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.