Chondrichthyes - Ctenacanthiformes - Ctenacanthidae
Parent taxon: Ctenacanthiformes according to M. Ginter et al. 2010
See also Duffin and Ginter 2006, Goto and Okura 2004, Thurmond and Jones 1981, Williams 2001 and Zangerl 1981
Sister taxa: Acandylacanthus, Arauzia, Ctenacanthoidea, Goodrichthys, Heslerodidae, Kaibabvenator, Moyacanthus, Nanoskalme, Neosaivodus, Pororhiza, Saivodus
Subtaxa: Acondylacanthus Amelacanthus Bythiacanthus Cladodoides Cladodus Cratoselache Ctenacanthus Eunemacanthus Glikmanius Glymmatacanthus Tamiobatis
Ecology: nektonic carnivore
Distribution:
• Triassic of Belgium (3 collections), Oman (1)
• Leonard of United States (1: Oklahoma)
• Permian of Bolivia (1), Brazil (1), China (1), Germany (5), Greenland (2), India (3), Japan (2), Oman (20), the Russian Federation (1), United States (18: Arizona, Kansas, Nebraska, Texas, Wyoming)
• Pennsylvanian of the United Kingdom (1)
• Carboniferous of Greenland (1), Japan (1), the Russian Federation (4), the United Kingdom (2), United States (49: Alabama, Arizona, Colorado, Illinois, Indiana, Kansas, Montana, Nebraska, Nevada, New Mexico, South Dakota)
• Mississippian of the United Kingdom (3), United States (1: Alabama)
• Devonian of Brazil (2), the Russian Federation (3), United States (3: Ohio)
Total: 129 collections including 175 occurrences