Cephalopoda - Ammonitida - Hildoceratidae
Parent taxon: Hildoceratidae according to M. K. Howarth 2013
Sister taxa: Arieticeratinae, Bouleiceratinae, Grammoceratinae, Harpoceratinae, Hildoceratinae, Leukadiellinae, Mercaticeratinae, Paroniceratinae, Tmetoceratinae
Subtaxa: Fuciniceras Lioceratoides Protogrammoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Algeria (5 collections), Argentina (2), Austria (13), Canada (149: Alberta, British Columbia, Nunavut, Yukon), Chile (27), France (57), Hungary (107), Iran (1), Italy (57), Japan (27), Mexico (4), Morocco (92), Portugal (2), the Russian Federation (3), Saudi Arabia (5), Slovakia (1), Spain (70), Switzerland (2), Tunisia (18), Türkiye (1), Ukraine (1), the United Kingdom (3), United States (45: Alaska, California, Nevada)
Total: 692 collections including 1007 occurrences