Chondrichthyes - Petalodontiformes - Petalodontidae
Parent taxon: Petalodontiformes according to M. Ginter et al. 2010
See also Goto and Okura 2004, Hay 1902, Lund 1989, Nelson 2006 and Thurmond and Jones 1981
Sister taxa: Belantseidae, Janassidae, Obruchevodidae, Paracymatodus, Petalorhynchidae, Pristodontidae, Serratodus
Subtaxa: Antliodus Chomatodus Glossodus Glyphanodus Harpacodus Itapyrodus Lisgodus Neopetalodus Peltodus Petalodus Polyrhizodus Strigilina Tanaodus
Type: Petalodus
Ecology: nektonic carnivore
Distribution:
• Cretaceous of Italy (1 collection), United States (3: Arizona)
• Permian of Brazil (1), Iran (1), Japan (5), United States (7: Kansas, New Mexico, Wyoming)
• Carboniferous of Greenland (1), Italy (1), Japan (1), the Russian Federation (1), Slovenia (2), the United Kingdom (14), United States (32: Alabama, Arizona, Indiana, Iowa, Kansas, Kentucky, Montana, Nebraska, New Mexico, Ohio, Oklahoma, Pennsylvania, Texas, West Virginia)
Total: 70 collections including 98 occurrences