Species: jakovlevi (RIABININ, 1927) EFREMOV, 1940
Etymology:
= Trematosuchus (?) jakovlevi RIABININ, 1927

Holotype: TsNIGRI 2169/1

Locality: Tikhvinskoye, Rybinsk, Rybinskaya district, Yaroslavl’ Province, European Russia.

Horizon: Rybinskian and Sludkian Horizons, Vetluga Series.

Biostratigraphy:

Age: Smithian Substage, Upper Nammalian Stage, Lower Scythian Epoch, Early Triassic.

Material: Anterior part of a skull.

Referred material:

Note: CHURE, 2000 lists PIN 3200/6, 81, 82, 132, 154, 160, 190: Skulls are stolen.

DAMIANI & YATES, 2003

AM F98271, WAM 96.8.1: Skulls.

GETMANOV 1979

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

3200/26, 3200/59-62, 117-121, 126: Lower jaws.

 

NOVIKOV & SENNIKOV, 1995

Locality: Tikhvinskoye locality, right bank of the Volga River, 12 km from the city of Rybinsk, north of Moscow, Rybinskaya district, Yaroslavl’ Province, European Russia.

Horizon: Rybinskian Horizon.

Biostratigraphy:

Age: Early Triassic.

Material:

Number: Not given:

 

ROCEK, 1991

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

PIN 3200/93, 127, 197, 199, 208, 239: Fragmentary skulls.

 

= Thoosuchus acutirostris (HARTMANN-WEINBERG & KUZMIN, 1936) EFREMOV, 1940
Etymology:
= Lyrocephalus acutirostris HARTMANN-WEINBERG & KUZMIN, 1936

Holotype:

Locality: Region of Ustyujny Town, near the Myshkino Village, European Russia.

Horizon:

Biostratigraphy:

Age: Early Triassic.

Material: Fragmentary skull.

 

= Thoosuchus tardus GETMANOV, 1989
Etymology:

Holotype: PIN 4000/1

Locality: Goryainovka, right bank of the Chapayevka River, opposite of the Goreynovka village, Samara basin, Samara Province, European Russia.

Horizon: Staritskaya Svita, Rybinskian Groizont, Middle Vetlugian Supergorizont.

Biostratigraphy:

Age: Middle Buntsandstein, Lowermost Olenekian Stage, upper Scythian Epoch, Early Triassic.

Material: Fragmentary skull.

 

= Thoosuchus tuberculatus GETMANOV, 1989
Etymology:

Holotype: PIN 4197/1

Locality: Kamennyi Yar ravine, Sorochka River, Samara Basin, Orenburg Province, European Russia.

Horizon: Rybinskian Gorizont.

Biostratigraphy:

Age: Early Triassic.

Material: Fragmentary skull.

Referred material:

TVERKOKHLEBOV, TVERDOKHLEBOVA, SURKOV & BENTON, 2002

Locality: Kamenny Yar I, Kamenny Yar ravine, right tributary of the Sorockha River, 7.5 km SE of Troyitzkoe village, Orenburg Region, Eastern European Russia.

Horizon: Kzylsaiskaya Svita, Sludkian Gorizont, Uppermiddle Vetlugan Supergorizont.

Biostratigraphy: (1).

Age: Uppermiddle to Lower Upper Buntsandstein, Middle Olenkian Stage, Scythian Epoch, Early Triassic.

Material:

Number: Not given: Skull fragment, lower jaw and clavicle.