MARYANSKA, 1970

Locality: Altan ULA IV, Nemegt Basin, Ömnögov (South Gobi), Mongolia.

Horizon: Upper Nemegt Formation.

Biostratigraphy:

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

Material:

ZPAL MgDI-/42: Incomplete caudal, 9 1/2 fused distal caudal vertebrae, surrounded by tendons, forming a tail-club ended by a knob and 68 more complete or less scales and spines of armature.