Species: cristatus KALANDANZE, 1970
Etymology: Latin, cristatus, "crest."

Holotype: PIN 952/100

Locality: Donguz I, right bank of the Donguz River (Drainage basin of left bank of the Ural River), 1 km downstream of Perovsky settlement, Sol-Illetzk district, Chkalov Region, 45 km south west of Chkalov town, Orenburg Province, European Russia.

Horizon: Donguz Svita, Donguz Gorizont.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material: Skull.

Modified from KALANDADZE, 1970.

Referred material:

Locality: Kotatevo II, Russia.

Horizon: Donguz Gorizont (Donguz Formation).

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Late Triassic.

Material:

PIN 2866/8, 2866/9: Fragmentary skulls.

 

TVERKOKHLEBOV, TVERDOKHLEBOVA, SURKOV & BENTON, 2002

Locality: Starokoltaveo III, right bank of the Bolshoy Yushatir River (Sakmara drainage basin), 7.5 km NE of Oktyabrsky Town, 2 km west of Starokoltaevo village, Bashkirian Republic (Bashkortostan), eastern European Russia.

Horizon: Donguz Svita, Donguz Gorizont.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: