Amniota - Therapsida

Full reference: E. C. Olson and J. R. Beerbower. 1953. The San Angelo Formation, Permian of Texas, and its Vertebrates. Journal of Geology 61(5):389-423

Parent taxon: Venjukovioidea according to E. C. Olson 1962

Sister taxa: Dromasauridae, Otsheriidae, Venjukovia

Subtaxa: Dimacrodon

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Type: Dimacrodon

Ecology: herbivore