Species: gigantea (MALEEV, 1956) MARYANSKA, 1977
Etymology:

Holotype: PIN 551-29

Locality: Nemegt, Nemegt basin, Ömnögov (South Gobi), Mongolia.

Horizon: Nemegt Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material: 12 free caudal vertebrae from anterior part of tail, metatarsus, phalanges of digits and ossicles.