Holotype: PIN 3386/2
Locality: 60 km south west of Choir, in the Middle Gobi Aimag Hüren Dukh (Khuren Dukh), Dundgov Aimak (Middle Gobi), Southeastern Mongolia
Horizon: Dzun-Bayin Formation, Huhteeg Gorizont, Zuubayan Svita.
Biostratigraphy:
Age: Aptian/Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch,
Early Cretaceous.
Note: Large lake deposit.
Material: Fragmentary postcranial skeleton.