Species: mongoliensis BARSBOLD & PERLE, 1983 in BARSBOLD, 1983
Etymology: In reference to Mongolia, where the speicmen was found.
Holotype: GIN 100/84
Locality: Kara Khutul, SE Mongolia.
Horizon: Bayan Shireh svita.
Biostratigraphy:
Age: Cenomanian –Turonian Stage, Uppermiddle-uppermost Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.
Material: Pelvic girdle lacking the upper portion of the ilia.