Species: viatkensis TATARINOV, 1999
Etymology: From the river Vyatka, Kirov
Region, Eastern European Russia.
Horizon: PIN, no. 2212/91
Locality: Kotel’nich locality, Kotel’nichskii District, Kirov Region, Eastern European Russia.
Horizon: Tatarian Series, Upper Severodvinian Substage, Severodvinian Horizon.
Biostratigraphy: Sokolki Faunal Assemblage, Kotelnich Faunal Subassemblage, Zone IV.
Age: Lowermost part of the Upper Tatarian Age, Lopingian Subepoch, upper Zechstein Epoch, Late Permian.
Material: Skull flattened dorsoventarlly and open from above.