Cephalopoda - Ammonitida - Hammatoceratidae
Parent taxon: Hammatoceratidae according to M. K. Howarth 2013
See also Arthur et al. 1993, Kovács 2009 and Westermann 1969
Sister taxa: Erycitinae, Fissilobiceras, Geczyceras, Hammatoceras, Podagrosiceratinae, Rarenodia, Zurcheriinae
Subtaxa: Bredyia Crestaites Erycitoides Euaptetoceras Eudmetoceras Onychoceras Paviaites Planammatoceras Pseudaptetoceras Puchenquia
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Argentina (16 collections), Canada (26: British Columbia, Northwest Territories, Yukon), Chile (14), France (10), Germany (6), Hungary (56), Iran (2), Italy (12), Morocco (22), the Russian Federation (2), Spain (36), Tunisia (2), Ukraine (1), the United Kingdom (1), United States (9: Alaska, Oregon)
Total: 215 collections including 330 occurrences