Genus: Pegomastax SERENO, 2012
Etymology: Greek, pegos, "strong" and Greek, mastax, "jaw": Strong Jaw.
africanus SERENO, 2012
Etymology: In reference to Africa, where the specimen was found.
Locality: Vosizane ("Voisana", Foisani), 30'34"S, 27'26"E, Transkei (Herschel) District, Eastern Cape Province, South Africa.
Horizon: Upper Elliot Formation.
Age: Hettangian-Lower Sinemurian Stage, Lower Lias Epoch, Early Jurassic.
Material Fragmentary skull preserving right and left dentaries and the predentary.: