Species: enigmatica (TCHUDINOV & VJUSCHKOV, 1956) IVAKHNEKO, 1975
Etymology:
= Tichvinskia enigmatica TCHUDINOV & VJUSHKOV, 1956

Holotype: PIN 1043/1

Locality: Donskaya Luka Locality, Lipovskaya Balka Ravine, Village of Sirotinskaya, right boundary of the valley of the Don, Ilovlyansk District, Volgograd Region, European Russia.

Horizon: Lipovskaya Formation, Gamskii Horizon, Yarenskii Superhorizon.

Biostratigraphy:

Age: Upper part of the Olenek Stage, Early Triassic.

Material: Fragmentary dentary.
Note: Now lost.
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Species: bruma IVACHNEKO, 1983
Etymology:

Holotype: PIN 3952/1

Locality: Severny Northern Island, Admiralteystvo Peninsula, mys (Cape) Nikolaya, Eastern Shore, outcrop 400 m from southern end of cape, Novaja Zemlya Archipelago, European part of Russia.

Horizon: Upper Subformation of Admiralteystva Formation, Uppermost part of Vetluga superhorizon.

Biostratigraphy:

Age: Early Triassic.

Material: Fragmentary skull and lower jaw.

Referred material:

PIN 3952/2: Incomplete skull.

 

Locality: Khey-Yaga River Basin, European Russia.

Horizon:

Biostratigraphy:

Age: Early Triassic.

Material:

PIN 4370/3: Right dentary.