Full reference: I. A. Efremov. 1938. Some New Permian Reptiles of the USSR. Comptes Rendus (Doklady) de l'Académie des Sciences de l'URSS 19(9):771-776
Sister taxon: Nyctiphruretus optabilis
Type specimen: PIN 158/5, a skull. Its type locality is Kiselikha, PIN 158, Lower Mezen' River, which is in a Kazanian/Urzhumian terrestrial horizon in the Russian Federation.
• Permian of the Russian Federation (7 collections)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.