†Simbirskites (Speetoniceras) Spath 1924
Cephalopoda - Ammonitida - Polyptychitidae
Alternative spelling: Speetoniceras
Parent taxon: Simbirskites according to C. W. Wright et al. 1996
See also Imlay 1960 and Sepkoski 2002
Sister taxa: Simbirskites (Craspedodiscus), Simbirskites broadi, Simbirskites decheni, Simbirskites lecontei, Simbirskites morvenae
Subtaxa: Speetoniceras agnessense
Distribution:
• Cretaceous of Georgia (1 collection), Greenland (1), the Russian Federation (2)
Total: 4 collections including 6 occurrences