Cephalopoda - Ammonitida - Diplomoceratidae
Parent taxon: Turrilitoidea according to Y. Shigeta and M. Izukura 2018
See also Brunnschweiler 1966, Cobban and Kennedy 1992, Dochev and Metodiev 2016, Gane et al. 2016, Henderson 1970, Henderson et al. 1992, Ifrim et al. 2015, Kennedy 1993, Kennedy 1995, Kennedy 1995, Kennedy 2000, Kennedy 2018, Kennedy and Christennsen 1993, Kennedy and Christensen 1991, Kennedy et al. 1997, Kennedy et al. 1997, Kennedy et al. 2000, Kennedy et al. 2007, Kennedy et al. 1992, Kennedy and Summesberger 1999, Kurihara et al. 2016, Niebuhr et al. 2016, Szives 2007, Thomel 1988, Ward and Kennedy 1993 and Wright 1952
Sister taxa: Anisoceratidae, Baculitidae, Hamitidae, Nostoceratidae, Plesiohamites, Turrilitidae
Subtaxa: Astreptoceras Diplomoceratinae Eudiplomoceras Masonites Polyptychoceratinae Ryugasella Schlueterella
Type: Diplomoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Angola (5 collections), Antarctica (60), Argentina (1), Armenia (1), Australia (15), Austria (4), Belgium (6), Brazil (4), Bulgaria (3), Canada (5: British Columbia), Chile (5), Colombia (2), Denmark (16), Egypt (1), France (42), Germany (5), Greenland (1), India (2), Iran (14), Iraq (3), Japan (78), Madagascar (2), Mexico (3), the Netherlands (2), New Zealand (4), Nigeria (2), Oman (3), the Russian Federation (7), South Africa (4), Spain (4), Sweden (1), Tajikistan (2), Tunisia (2), Ukraine (3), the United Arab Emirates (1), the United Kingdom (2), United States (159: Alabama, Alaska, Arkansas, California, Colorado, Delaware, Mississippi, Montana, New Jersey, New Mexico, Oregon, Texas, Utah, Washington, Wyoming), Venezuela (1)
Total: 475 collections including 576 occurrences