Cephalopoda - Ammonitida - Hildoceratidae
Invalid subtaxa: Seguenziceratidae Spath 1924 [replaced name], Seguenziceratinae Spath 1924 [replaced name]
Full reference: M. K. Howarth. 1955. Domerian of the Yorkshire Coast. Proceedings of the Yorkshire Geological Society 30:147-175
Parent taxon: Hildoceratidae according to M. K. Howarth 2013
See also Frebold 1970, Géczy and Meister 1998, Hillebrandt 2006, Howarth 1955, Meister and Friebe 2003, Smith and Tipper 1996, Spath 1924 and Thomson and Smith 1992
Sister taxa: Bouleiceratinae, Grammoceratinae, Harpoceratinae, Hildoceratinae, Leukadiellinae, Mercaticeratinae, Paroniceratinae, Protogrammoceratinae, Tmetoceratinae
Subtaxa: Arctomercaticeras Arieticeras Emaciaticeras Fontanelliceras Leptaleoceras Mauretaniaceras Tauromeniceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Algeria (5 collections), Argentina (1), Austria (11), Canada (112: British Columbia, Yukon), Chile (22), France (2), Hungary (27), Italy (6), Japan (2), Morocco (36), Portugal (1), the Russian Federation (4), Slovakia (1), Spain (45), Tunisia (20), the United Kingdom (2), United States (13: Alaska, Nevada)
Total: 310 collections including 444 occurrences