Chondrichthyes - Hexanchiformes - Heptranchidae
Parent taxon: Hexanchiformes according to R. van der Laan 2019
See also Itoigawa 1977
Sister taxa: Chlamydoselachidae, Crassonotidae, Hexanchidae, Hexanchoidei, Komoksodontidae, Orthacodidae, Paraheptranchias, Paranotidanus
Subtaxa: Heptranchias
Type: Heptranchias
Ecology: nektonic carnivore
Distribution:
• Quaternary of Brazil (1 collection)
• Miocene of Colombia (1), Costa Rica (2), France (2), Italy (1), Japan (1), Panama (1)
• Oligocene of Czechia (2), Poland (4), Venezuela (1)
• Eocene of Antarctica (1), Australia (1), Canada (1: British Columbia), Denmark (2), France (6), Japan (1), Jordan (2), Morocco (1), Ukraine (2), United States (5: New Jersey, Oregon, Washington)
• Paleocene of Denmark (1), New Zealand (1), Sweden (2)
• Cretaceous to Paleogene of United States (1: New Jersey)
Total: 43 collections including 44 occurrences