Species: acervalis GUBIN, 1980
Etymology:

Holotype: PIN 3817/1

Locality: Ezhovo locality (Yezhovo settlement), Ochersky area, Ocherskii (Otcher) District, Permian (Perm) region, European Russia.

Horizon: Biarmian Series.

Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage, Zone 1.

Age: Upper Kazanian Substage, Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Skull.

Referred material:

PIN 1758/332, 1758/333: Skull and dorsal plates.