†order Petalodontiformes Zangerl 1981

Chondrichthyes - Petalodontiformes

Alternative spelling: Petalodontida

Full reference: R. Zangerl. 1981. Chondrichthyes I: Paleozoic Elasmobranchii. Handbook of Paleoichthyology 3a

Parent taxon: Holocephali according to J. A. Long 2011

See also Ginter et al. 2010, Goto and Okura 2004, Nelson 2006 and Sepkoski 2002

Sister taxa: Debeeriformes, Delphyodontos, Eugeneodontiformes, Helodontiformes, Holocephalomorpha, Iniopterygiformes, Macrodontacanthus, Menaspacanthus, Orodontiformes, Paraselachiamorpha, Paraselachimorpha, Physonemus, Ptyktoptychion, Thoralodus, Pseudodontichthyidae, Metaxyacanthus, Ageleodus, Mesolophodus, Desmiodus, Cynopodius, Gregoriidae, Lagarodontidae, Brachyrhizodus, Euglossodus

Subtaxa: Belantseidae Janassidae Paracymatodus Petalodontidae Pristodontidae Serratodus

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Distribution:

• Cretaceous of Italy (1 collection)

• Permian of Bolivia (1), Brazil (1), China (2), Germany (13), Greenland (1), Iran (1), Japan (6), Oman (1), Pakistan (1), the Russian Federation (1), the United Kingdom (3), United States (19: Arizona, Kansas, New Mexico, Oklahoma, Texas, Wyoming)

• Pennsylvanian of the United Kingdom (8), United States (1: Iowa)

• Osagean of United States (1: Iowa)

• Carboniferous to Permian of the Russian Federation (1)

• Carboniferous of Greenland (1), Italy (2), Japan (1), the Russian Federation (1), Slovenia (2), the United Kingdom (10), United States (38: Arizona, Indiana, Kansas, Montana, Nebraska, New Mexico, New mexico, Ohio, Oklahoma, Pennsylvania, South Dakota, Texas, West Virginia)

• Mississippian of the United Kingdom (7), United States (2: Alabama, Kentucky)

Total: 126 collections including 187 occurrences

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