†superfamily Ptychoceratoidea Gill 1871 (ammonite)
Cephalopoda - Ptychoceratoidea
Parent taxon: Ammonoidea according to J. Klein et al. 2007
Sister taxa: none
Subtaxa: Hamulinidae Megacrioceratidae
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Canada (1: British Columbia collection), Chile (8), Colombia (1), Egypt (1), France (4), Hungary (5), Italy (2), Japan (2), Mexico (8), Slovakia (3), Spain (75), Trinidad and Tobago (1), Tunisia (2), United States (16: California, Oregon)
Total: 129 collections including 155 occurrences