Species: improvisa NOVIKOV & SHISHKIN, 1992
Holotype: PIN No. 4371/1
Locality: Right bank of Malyy Aranets River, right tributary of Pechora river, 7 km upstream from mouth, Komi Republic, European Russia.
Horizon: Perebor series of Krasnokamenskaya Formation.
Age: Middle Triassic.
Material: Fragment of preorbital part of left half of skull.