Species: sukhonensis TATARINOV, 1977
Etymology:
Holotype: PIN 3159/1
Locality: Navoloki Locality, Right bank of Sukhona River 1.5 km below Navoloki hamlet, Nyuksenitsa District, Volga Province, Russia.
Horizon: Northern Dvina Horizon, Poldarsa Formation, Tatarian Series, Upper Severodvinian Substage, Severodvinian Horizon (Sukhonian suite).
Biostratigraphy: Sokolki Faunal Assemblage, Ilinskoe Faunal Subassemblage, Proelginia permiana Zone.
Age: Upper Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Fragmentary skull.