Wikipedia
Eriphostoma
Eriphostoma is an extinct genus of gorgonopsian therapsid known from the Middle Permian (middle Capitanian stage) of Tapinocephalus Assemblage Zone, South Africa. It was first named by Robert Broom in 1911 and the type species is Eriphostoma microdon. A revision of Eriphostoma by Kammerer (2013) found it to represent the earliest known gorgonopsian.