†family Phthinosuchidae Efremov 1954 (therapsid)
Osteichthyes - Therapsida - Phthinosuchidae
Parent taxon: Rubidgeoidea according to M. F. Ivakhnenko 2003
See also Battail and Surkov 2000, Carroll 1988, Kemp 1982, Olson 1962 and Olson 1966
Sister taxa: Inostranceviidae, Rubidgeidae
Subtaxa: Dinosaurus Gorgodon Kamagorgon Knoxosaurus Steppesaurus
Ecology: carnivore
Distribution:
• Tatarian of the Russian Federation (1 collection)
• Permian of the Russian Federation (3), United States (2: Texas)
Total: 6 collections including 9 occurrences