Full reference: M. F. Ivakhnenko. 2008. Podklass Ophiacomorpha. Iskopaemye pozvonotchnye Rossii i sopredel'nykh stran: Iskopaemye reptilii i ptitsy, Tchast' 1 [Fossil vertebrates of Russia and adjacent countries: Fossil reptiles and birds, Part 1], GEOS, Moscow 95-100
Parent taxon: Gorgonopsia according to M. F. Ivakhnenko 2008
Sister taxa: Broomisaurus planiceps, Cerdodon, Cynarioides gracilis, Cyniscodon, Cyniscodon lydekkeri, Cyniscops, Cynodraco, Cynodraco major, Cynodraco serridens, Dixeya, Eriphostoma, Estemmenosuchida, Galesuchidae, Gorgonopida, Gorgonopidae, Hipposaurus kitchingi, Ictidorhinida, Karoopes, Nochnitsa, Phorcys, Scylacognathus major, Viatkogorgon, Watongiidae
Subtaxa: Nikkasauridae
Ecology: carnivore
Distribution:
• Permian of the Russian Federation (2 collections)
Total: 2 collections including 3 occurrences