Osteichthyes - Synapsida

Parent taxon: Eupelycosauria according to F. Spindler 2015

See also Ivakhnenko 2008, Spindler et al. 2015 and Spindler et al. 2019

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

Subtaxa: Sphenacodontia

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Ecology:

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