Parent taxon: Ammonitina according to M. Benzaggagh et al. 2022
See also Howarth 2013 and Kovács 2009
Sister taxa: Acanthoceratoidea, Aspidoceratoidea, Deshayesitoidea, Desmoceratoidea, Engonoceratoidea, Eoderoceratoidea, Hildoceratoidea, Hoplitoidea, Lytoceratoidea, Oppeliaceae, Perisphinctaceae, Perisphinctoidea, Psiloceratoidea, Pulchelliaceae, Sphaeroceratoidea, Spiroceratoidea, Stephanoceratoidea, Hamitaceae, Protetragonitidae, Crioceratitaceae, Nannolytoceratidae, Tetragonitoidea
Subtaxa: Hammatoceratidae
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Japan (1 collection)
• Jurassic of Argentina (16), Bulgaria (2), Canada (90: British Columbia, Northwest Territories, Yukon), Chile (20), France (30), Germany (13), Hungary (134), Indonesia (1), Iran (3), Italy (20), Morocco (27), the Russian Federation (2), Saudi Arabia (1), Slovakia (1), Spain (90), Thailand (1), Tunisia (2), Ukraine (1), the United Kingdom (6), United States (11: Alaska, Oregon)
Total: 472 collections including 885 occurrences