JSMPE (MMNH 100/30)
Locality: Hüren Dukh (Khuren Dukh), 60 km south west of Choir Dundgov Aimak (Middle Gobi), Middle Gobi region of central Mongolia.
Horizon: Large lake deposit, Züünbayan Formation (Dzun-Bayin Formation).
Age: Aptian/Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Material: Almost complete lower jaw, anterior end of the upper jaw, most of
the neck, an almost complete left wing and major elements of both hind limbs.
Estimated wingspan is 5.5 m.