Chondrichthyes - Ctenacanthiformes - Ctenacanthidae
Parent taxon: Ctenacanthiformes according to M. Ginter et al. 2010
See also Duffin and Ginter 2006, Goto and Okura 2004, Nelson et al. 2016, Thurmond and Jones 1981, Williams 2001 and Zangerl 1981
Sister taxa: Acandylacanthus, Arauzia, Ctenacanthoidea, Goodrichthys, Heslerodidae, Kaibabvenator, Moyacanthus, Nanoskalme, Neosaivodus, Pororhiza, Saivodus
Subtaxa: Acondylacanthus Anodontacanthus ruthenorum Bythiacanthus Cladodoides Cladodus Cratoselache Ctenacanthus Glikmanius Glymmatacanthus Tamiobatis
Ecology: nektonic carnivore
Distribution:
• Triassic of Belgium (3 collections), India (3)
• Permian of Bolivia (1), Brazil (3), China (1), Germany (5), Greenland (2), India (3), Japan (2), Oman (20), the Russian Federation (2), Svalbard and Jan Mayen (1), United States (18: Arizona, Kansas, Nebraska, Oklahoma, Texas, Wyoming)
• Carboniferous of Belarus (3), Greenland (1), Ireland (1), Japan (1), the Russian Federation (5), the United Kingdom (12), United States (52: Alabama, Arizona, Colorado, Illinois, Indiana, Kansas, Montana, Nebraska, Nevada, New Mexico, South Dakota)
• Devonian of Afghanistan (1), Belarus (1), Brazil (2), the Russian Federation (3), United States (3: Ohio)
Total: 149 collections including 187 occurrences