†unranked clade Haptodontiformes Spindler 2015 (synapsid)

Osteichthyes - Synapsida

Full reference: F. Spindler. 2015. The basal Sphenacodontia: Systematic revision and evolutionary implications. 385

Parent taxon: Eupelycosauria according to F. Spindler 2015

Sister taxa: Edaphosauridae, Ophiacodontidae, Sphenacomorpha, Therapsida, Varanopidae

Subtaxa: Eohaptodus Haptodus Hypselohaptodus Kenomagnathus Tenuacaptor

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• Permian of France (1 collection), Germany (3), the United Kingdom (1)

• Carboniferous of United States (1: Kansas)

Total: 6 collections including 8 occurrences

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