Cephalopoda - Ammonitida - Diplomoceratidae
Alternative spelling: Polyptychoceratidae
Parent taxon: Diplomoceratidae according to W. J. Kennedy 2018
See also Brunnschweiler 1966, Ifrim et al. 2013, Ifrim et al. 2015, Kennedy 1993, Kennedy 1995, Kennedy 2000, Kennedy and Cobban 1994, Kennedy et al. 2007, Kennedy et al. 2000, Kennedy and Summesberger 1999 and Ward and Kennedy 1993
Sister taxa: Astreptoceras, Diplomoceratinae, Eudiplomoceras, Masonites, Ryugasella, Schlueterella
Subtaxa: Oxybeloceras Phylloptychoceras Polyptychoceras Pseudoxybeloceras Solenoceras Spiroxybeloceras
Type: Polyptychoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Angola (5 collections), Antarctica (17), Argentina (1), Austria (1), Belgium (2), Canada (1: British Columbia), Denmark (1), Egypt (1), France (11), Germany (1), India (1), Iraq (2), Japan (51), Madagascar (1), Mexico (2), New Zealand (4), Nigeria (2), the Russian Federation (4), South Africa (1), Spain (2), Tajikistan (1), United States (54: Alabama, Alaska, Arkansas, California, Colorado, Delaware, Mississippi, Montana, New Mexico, Texas, Washington, Wyoming)
Total: 166 collections including 192 occurrences