Osteichthyes - Ptycholepiformes
Alternative spelling: Ptycholepidiformes
Parent taxon: Chondrostei according to J. A. Long 2011
See also Nelson et al. 2016 and Sepkoski 2002
Sister taxa: Acipenseriformes, Asterodontidae, Cheirolepiformes, Chondrosteiformes, Dictyopygidae, Diphyodontidae, Guidayichthyiformes, Luganoiiformes, Neochallaia, Phanerorhynchiformes, Pholidopleuriformes, Polyodonti, Saurichthyiformes, Sturii
Subtaxa: Chungkingichthys Ptycholepididae Yuchoulepis
Ecology:
Distribution:
• Jurassic to Cretaceous of Thailand (1 collection)
• Jurassic of Belgium (1), China (2), France (3), the Russian Federation (1), the United Kingdom (8), United States (4: Connecticut, New Jersey, Virginia)
• Triassic of Canada (2: British Columbia), China (2), Greenland (4), Italy (7), Madagascar (5), Spain (6), Svalbard and Jan Mayen (17), Switzerland (8), United States (5: Arizona, Nevada, New Mexico, Virginia)
Total: 76 collections including 100 occurrences