Species: nemegtensis KIELAN-JAWOROWSKA, 1975
Etymology: Referes to the locality of Nemegt, where the holotype was found.
Holotype: ZPal MgM-I/56
Locality: Southern Monadnocks, Nemegt, Nemegt basin, Ömnögov (South Gobi), Mongolia.
Horizon: Barun Goyot Formation.
Biostratigraphy:
Age: Late Santonian-Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..
Material: Skull, incomplete atlas, axis.
Referred material:
Locality: Hermiin Tsav II (Khermeen Tsav II), western Ömnögov (South Gobi), Mongolia.
Horizon: Hermiin Tsav (Khermeen Tsav) Formation.
Biostratigraphy:
Age: Late Cretaceous.
Material:
ZPal MgM-I/98: Skull cervical vertebrae, first thoracic vertebra, fragmentary right fore limb, radius and ulna both without proximal ends, nearly complete carpus without pisiform, 5 metacarpals without distal ends and incomplete right hind limb, tibia and fibula without proximal ends, calcaneus, astragalus and cuboideaum somewhat displaced, distal part consists of 3 cuneiforms, fragment of the distal end of the navicular, 5 metatarsals, first phalanges of the first, second and third digits, and damaged second phalanx of the first digit of a juvenile.
Locality: Khulsan, Nemegt basin, Ömnögov (South Gobi), Mongolia.
Horizon: Barun Goyot Formation.
Biostratigraphy:
Age: Late Santonian-Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..
Material:
ZPal MgM-I/73: Fragment of right maxilla with M1-M3, partial right mandible with M2-M3 and partial left mandible with P3- M3.
NOVACEK, HOFFMAN & O'LEARY, 2023
PSS-MAE 114: Right maxillary fragment with P4, P5, M1-3.
PSS-MAE 373: Nearly complete but disarticulated cranium including braincase, petrosals, palate, left zygomatic arch, left maxilla with P4, P5, M1-3 adn alveolous for P2, and right maxilla with P1, P4, P5, M1-3 and alveoli for P2 and C.
And to maxillae associated with right and left mandibles.
NOVACEK, HOFFMAN & O'LEARY, 2023
Locality: Ukhaa Tolgod, Nemegt Basin, Ömnögov (South Gobi), Mongolia.
Horizon: Djadochta Formation.
Biostratigraphy:
Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
PSS-MAE 366: Skull with articulated jaws and complete dentition.
Locality: Udan Sayr, Ömnögov (South Gobi), Mongolia.
Horizon: Djadochta Formation.
Biostratigraphy:
Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
PSS-MAE 616: Right maxilla, rostrum, and articulated lower jaw with I5, C, P1, P2, P4, M1-3 and i3, i4, c, pl, p2,p4, p5, and m1-3.