Species: invisa (EFREMOV, 1940) IVAKHENKO,1996
Etymology:
= Venjukovia invisa EFREMOV, 1940
= Venyukovia invisa (EFREMOV, 1940)
= Myctosuchus invisa IVACHNENKO (nomen nudum)

Holotype: PIN 157/5

Locality: Isheevo Locality, gorge Kurmy-Chugor, Kamennyi Ravine, left bank of Ulema River, tributary of Sviaga River, 7 km from Isheevo-Nikiforovo Village, Apastovskii (Apostov) District, Tartstan (Tartar), SSSR, European Russia.

Horizon: Urzhumian Stage, Urzhumian Horizon (Dinocephalian Complex).

Biostratigraphy: Isheevo Faunal Assemblage, Isheevo Faunal Subassemblage, Zone II.

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

Material: Front half of skull of which the tip of the snout is missing and a lower jaw.

Ulemica invisa Holotype: PIN 157/5 after EFREMOV, 1940.

Referred material:

PIN 2793/1: Skull.

PIN 157/6: A lower jaw symphysis with teeth.

PIN 157/7: Symphysial part of lower jaw.

PIN 157/8: A lower jaw symphysis with 4 teeth preserved on each side.

PIN 157/1111: A lower jaw symphysis and dentary rami with teeth.

PIN 157/1112: A complete lower jaw.

PIN 157/1114: A lower jaw symphysis with teeth.

PIN 157/1115: A lower jaw symphysis and dentary rami with no teeth.

PIN 157/1116: A skull.

PIN 157/2793: A more or less complete, somewhat laterally flattened skull.

IVAKHNENKO, 2008b

PIN 157/688: Left quadrate-quadratojugal complex.

PIN 157/989: Maxillary.

PIN 157/1117: Incisor.

 

WATSON, 1948

Locality: Middle Volga, European Russia.

Horizon:

Biostratigraphy: Titanophoneus zone.

Age: Late Permian.

Material:

R 85: Dentary.

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Species: efremovi IVAKHENKO, 1996
Etymology: In honor of I. A. Efremov.

Holotype: PIN 2793/1

Locality: Novo-Nikolskoe-3, right bank of Malyi Uran River, 2 km downstream of Novo-Nikolskoe village, Samara drainage basin, Aleksandrovskii District, Orenburg Region, European Russia.

Horizon: Biarmian Series, Urzhumian Stage, Urzhumian Horizon (Bolshekinelskaya Svita, Uzhumian Gorizont).

Biostratigraphy: Isheevo Faunal Assemblage, Isheevo Faunal Subassemblage.

Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Late Middle Permian.

Material: Skull.

Referred material:

= Ulemica df. efremovi IVAKHNENKO, 2008b

Locality: Dudki Locality, Oktyabr'skii District, Orenburg Region, European Russia.

Horizon: Biarmian Series, Urzhumian Stage, Urzhumian Horizon.

Biostratigraphy: Isheevo Faunal Assemblage.

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

Material: PIN 519/1: Premaxilla.