Holotype: PIN 1584/5

Locality: Chorva, right bank of the Yarenga river, 40 km. above the mouth, just above the village, Vychegda basin, Arkhangelskaya Province, European Russia.

Horizon: Yarenskian Horizon, Vetluga Series.

Biostratigraphy:

Age: Early Triassic.

Material: Pterygoid-parasphenoid fragment.