Cephalopoda - Ammonitida - Polyptychitidae
Parent taxon: Polyptychites according to P. Alsen 2006
See also Bogomolov 1989 and Kemper and Jeletzky 1979
Sister taxa: Polyptychites (Amundiptychites), Polyptychites (Astieriptychites), Polyptychites (Euryptychites), Polyptychites (Paleodichotomites), Polyptychites (Primitiviptychites), Polyptychites (Siberiptychites), Polyptychites balkwilli, Polyptychites brancoi, Polyptychites canadensis, Polyptychites clarkei, Polyptychites hapkei, Polyptychites hesperius, Polyptychites hoeli, Polyptychites lamplughi, Polyptychites multicostatus, Polyptychites multiplicatus, Polyptychites oerlinghusanus, Polyptychites orbitatus, Polyptychites pavlowi, Polyptychites saxonicus, Polyptychites sublatissimus, Polyptychites tethyale, Polyptychites traski, Polyptychites trichotomus, Polyptychites villersensis
Subtaxa: Polyptychites (Polyptychites) ascendens Polyptychites (Polyptychites) beani Polyptychites (Polyptychites) conferticosta Polyptychites (Polyptychites) keyserlingi Polyptychites (Polyptychites) michalskii Polyptychites (Polyptychites) plenus Polyptychites (Polyptychites) polyptychus Polyptychites (Polyptychites) ramulicosta Polyptychites (Polyptychites) rawsoni Polyptychites (Polyptychites) robertsi Polyptychites (Polyptychites) tuberculatus
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Canada (8: British Columbia, Northwest Territories, Yukon collections), Greenland (7), Poland (1), the Russian Federation (28), Svalbard and Jan Mayen (3)
Total: 47 collections including 69 occurrences