Named By: Robert Broom - 1911.
Synonyms: Eoarctops vanderbyli, Galesuchus gracilis, Scylacognathus parvus.
Classification: Chordata, Synapsida, Therapsida, Theriodontia, Gorgonopsia.
Species: E. microdon (type).
Size: Skull 15 entimetres long.
Known locations: South Africa - Tapinocephalus Assemblage Zone.
Time period: Capitanian of the Permian.
Fossil representation: Partial skull remains.
Eriphostoma is a little known genus of gorgonopsid, but one that is important to the study of them given that Eriphostoma may well represent the earliest known gorgonopsid. There has been speculation that another genus called Broomisaurus and known only from fragmentary fossils may be junior synonym to Eriphostoma.
- On some New South African Permian Reptiles. - Proceedings of the Zoological Society of London 81(4):1073-1082. - R. Broom - 1911.
- On some new therapsid genera - Annals of the South African Museum, v. 28, n. 1, p. 55-78. - S. Haughton - 1929.
- A Redescription of Eriphostoma microdon Broom, 1911 (Therapsida, Gorgonopsia) from the Tapinocephalus Assemblage Zone of South Africa and a Review of Middle Permian Gorgonopsians, by Christian F. Kammerer. In, Early Evolutionary History of the Synapsida, Christian F. Kammerer, Kenneth D. Angielczyk & Jörg Fröbisch (eds) - 2013.
- New information on the morphology and stratigraphic range of the mid-Permian gorgonopsian Eriphostoma microdon Broom, 1911. - Papers in Palaeontology. - Christian F. Kammerer, Roger M. H. Smith, Michael O. Day & Bruce S. Rubidge - 2015.