Cephalopoda - Ammonitida - Arietitidae
Parent taxon: Psiloceratoidea according to M. K. Howarth 2013
See also Blau 1998, Corna and Dommergues 1995, Geczy and Meister 2007, Macchioni et al. 2006 and Meister and Friebe 2003
Sister taxa: Asteroceratidae, Cymbitidae, Echioceratidae, Oxynoticeratidae, Phyllytoceratidae, Psiloceratidae, Schlotheimiidae, Oxyarietites
Subtaxa: Aegoceras albense Agassiceratinae Alsatitinae Arietitinae Bartoliniceras Hypasteroceratinae Pseudotropitinae
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Argentina (9 collections), Austria (40), Belgium (1), Canada (156: Alberta, British Columbia, Yukon), Chile (73), China (12), France (17), Germany (32), Hong Kong (2), Hungary (16), Indonesia (6), Italy (11), Japan (1), Luxembourg (2), Mexico (16), the Netherlands (1), New Caledonia (1), New Zealand (1), Peru (2), Romania (1), the Russian Federation (1), Slovakia (1), Switzerland (1), Tunisia (3), Turkey (3), Ukraine (4), the United Kingdom (32), United States (78: Alaska, California, Nevada, Oregon)
• Triassic to Jurassic of Austria (1), Chile (1)
Total: 525 collections including 979 occurrences