Coba jelasin See also dari Rhopalodon dong

Valentin P.  Tverdokhlebov, Galina I. Tverdokhlebova, Alla V.  Minikh, Mikhail V.  Surkov, and Michael J.  Benton, (2005)  Upper Permian vertebrates and their sedimentological context in the South Urals, Russia, Earth-Science Reviews 69 27-77 55