Cephalopoda - Ammonitida - Pachydiscidae
Parent taxon: Desmoceratoidea according to Y. Shigeta and M. Izukura 2018
See also Arkadiev et al. 2000, Benzaggagh et al. 2017, Cobban and Kennedy 1992, Henderson 1970, Ifrim et al. 2015, Kennedy 1984, Kennedy 1993, Kennedy 1995, Kennedy 1995, Kennedy 1999, Kennedy 2018, Kennedy and Bilotte 1995, Kennedy and Christensen 1991, Kennedy and Cobban 1993, Kennedy and Cobban 1996, Kennedy and Cobban 1997, Kennedy et al. 2007, Kennedy and Gale 2015, Kennedy et al. 1992, Landman et al. 2007, Matsumoto 1984, Niebuhr et al. 2016, Shigeta 2016, Summesberger 1979, Ward and Kennedy 1993, Wright 1952 and Wright and Kennedy 1984
Sister taxa: Beudanticeratidae, Desmoceratidae, Kossmaticeratidae, Muniericeratidae, Puzosiidae, Silesitidae
Subtaxa: Baskaniceras Canadoceras Chimbuites Eopachydiscus Eupachydiscus Hoepenites Lewesiceras Menabonites Menuites Nowakites Pachydiscoides Pachydiscus Patagiosites Pseudojacobites Teshioites Tongoboryceras Tuberodiscoides Urakawites
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous to Paleogene of United States (1: New Jersey collection)
• Cretaceous of Angola (3), Antarctica (65), Armenia (1), Australia (26), Austria (7), Belgium (5), Brazil (2), Bulgaria (4), Cameroon (2), Canada (7: British Columbia), Chile (9), the Czech Republic (1), Denmark (11), Egypt (2), France (120), Germany (40), Haiti (3), Hungary (1), India (2), Iran (5), Jamaica (1), Japan (45), Jordan (1), Madagascar (3), Mexico (7), Morocco (1), the Netherlands (1), New Zealand (1), Nigeria (3), Oman (6), Papua New Guinea (4), Romania (1), the Russian Federation (15), Saudi Arabia (1), South Africa (4), Spain (7), Sweden (1), Turkey (2), Turkmenistan (3), Ukraine (8), the United Arab Emirates (1), the United Kingdom (15), United States (191: Alabama, Alaska, Arkansas, California, Delaware, Mississippi, New Jersey, New Mexico, Texas, Washington, Wyoming)
Total: 639 collections including 821 occurrences