"Dinogorgon" is part of the gorgonopsian subfamily Rubidgeinae, a derived group of large-bodied gorgonopsians restricted to the Late Permian (Lopingian).The Rubidgeinae subfamily first appeared in the "Tropidostoma" Assemblage Zone, and reached their highest diversity in the "Cistecephalus" and "Daptocephalus" assemblage zones of the Beaufort Group in South Africa.