Species: arefjevi KURKIN, 2001
Etymology: In honor of M. P. Aref’ev who found the holotype.
Holotype: PIN 4644/1
Locality: Voskresenskoe-2B, Right bank of the Vetluga River, Voskresenkoe Village, Voskresenskii Distict, Nizhni Novgorod Region, European Russia.
Horizon: Tatarian Series, Upper Vyatkian substage, Vyatkian Horizon:
Biostratigraphy: Sokolki Faunal Assemblage, Sokolki Faunal Subassemblage.
Age: Upper Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Skull lacking mandible.
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Species: berezhanensis KURKIN, 2001
Etymology: From the town of Berezhane, Kirov Region, European
Russia.
Holotype: PIN 1536/2
Locality: Berezhane locality, Slobodskoi District, Kirov Region, European Russia.
Horizon: Tatarian Series, Upper Vyatkian Substage, Vyatkian Horizon.
Biostratigraphy: Sokolki Faunal Assemblage, Sokolki Faunal Assemblage, (Dicynodon Assemblage zone, LUCAS, 2005).
Age: Late Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Incomplete skull.