TSOGTBAATAR & CHINZORIG, 2010
Locality: Tögrögiin Shiree-IV (= Tugrugeen Shireh, Tugrikin-Shireh-IV locality), Ömnögov (South Gobi), Mongolia.
Horizon: Djadochta Formation.
Biostratigraphy:
Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
Field number: 940726 TS-IV WTB: Nearly complete skull.
Note: Skull is longer than Protoceratops andrewsi.