Cephalopoda - Ammonitida - Craspeditidae
Alternative spellings: Euryptychites (Propolyptychites), Polyptychites (Propolyptychites), Propolyptychites
Synonym: Paratollia Casey 1973
Parent taxon: Virgatoptychites according to P. Alsen 2006
See also Bogomolov 1989, Jeletzky and Kemper 1988 and Wright et al. 1996
Sister taxa: Virgatoptychites (Virgatoptychites), Virgatoptychites changalassensis
Subtaxa: Euryptychites (Propolyptychites) arcticus Euryptychites (Propolyptychites) globulosus Paratollia kemperi Propolyptychites bentheimensis Virgatoptychites (Propolyptychites) pumilio Virgatoptychites (Propolyptychites) quadrifidus Virgatoptychites (Propolyptychites) tenuicostatus
Type: Polyptychites quadrifidus
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Greenland (3 collections), the Russian Federation (31), Svalbard and Jan Mayen (2)
Total: 36 collections including 43 occurrences