Species: koltaeviensis SURKOV, 1999
Etymology: In reference to the locality of Koltaevo, Southern Fore-Urals, European Russia.

Holotype: SSU, no. 161/29

Locality: Koltaevo-2 locality, Kumertauskii District, Bashkortostan, Southern Fore-Urals, European Russia.

Horizon: Donguz Gorizont (Donguz Formation).

Biostratigraphy:

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

Material: Left ramus of the premaxilla.

Referred material:

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: