Cephalopoda - Ammonitida - Cardioceratidae
Synonym: Cadoceratidae Hyatt 1900
Parent taxon: Stephanocerataceae according to D. N. Kiselev 1997
See also Arkell et al. 1957, Arthur et al. 1993, Mesezhnikov 1984, Mitta 2016 and Schlegelmilch 1994
Sister taxa: Macrocephalitidae, Oecoptychiidae, Otoitidae, Sphaeroceratidae, Stephanoceratidae, Tulitidae
Subtaxa: Arctocephalitinae Cadoceratinae Cadochamoussetia Cardioceratinae Eckhardites Plasmatites
Type: Cardioceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of the United Kingdom (1 collection)
• Jurassic of Canada (11: British Columbia), France (29), Germany (7), Greenland (1), North Atlantic (1), Poland (3), the Russian Federation (29), Svalbard and Jan Mayen (17), Sweden (1), Switzerland (1), the United Kingdom (37), United States (158: Alaska, California, Montana, Wyoming)
Total: 296 collections including 541 occurrences