†superfamily Seymourioidea Tatarinov 1971 (tetrapod)

Osteichthyes - Seymouriamorpha

Parent taxon: Seymouriamorpha according to V. V. Bulanov 2003

See also Carroll et al. 1972

Sister taxa: Adenoderma, Chronisuchidae, Discosauriscidae, Kotlassidae, Kotlassioidea, Leptorophida, Promelanerpeton, Sauravidae, Waggonerida

Subtaxa: Discosauridae Karpinskiosauridae Seymouriidae

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Type: Seymouriidae

Ecology:

Distribution:

• Rotliegendes of Czechia (1 collection)

• Permian of Canada (1: Prince Edward Island), Czechia (7), France (2), Germany (2), the Russian Federation (19), United States (16: Colorado, New Mexico, Oklahoma, Texas, Utah)

Total: 48 collections including 54 occurrences

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