Amniota - Therapsida - Phthinosuchidae

Full reference: E. C. Olson. 1962. Late Permian terrestrial vertebrates, U.S.A. and U.S.S.R. Transactions of the American Philosophical Society, New Series 52(2):1-224

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

Sister taxa: Gorgodon, Phthinosaurus, Phthinosuchus, Steppesaurus

Subtaxa: Knoxosaurus niteckii

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Type: Knoxosaurus niteckii

Ecology: