Species: plicatospineus MALEEV, 1952
Etymology: Latin, plicatura,"folded" and Latin, spineus, "thorny."

Holotype: PIN 557

Locality: Bayan Shiree (Bain-Shire), eastern Gobi desert, Dornod, Dornogov’, Mongolia.

Horizon: Bain Shiree Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch-Lower Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material: Fragments of postcranial skeletons of at least 6 individuals and 2 fragments of skulls.

Note: According to COOMBS, 1971; Back of skull, numerous vertebrae, ribs, scapulocoracoid, humerus, radius, ulna, nearly complete manus, partial ilium, ischium, femur, tibia, fibula, nearly complete pes and armor.

Note: Has two anterior free caudal vertebrae that are fused. (ARBOUR & CURRIE, 2011)

Referred material:

KURZANOV & TUMANOVA, 1978

Locality: Baishin (Bayshin-Tsav), Dornogovi, Mongolia.

Horizon: Bain Shiren Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch-Lower Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

PIN 3780/1: Top of skull and fragmentary skeleton.

Locality: Baishin (Bayshin-Tsav), Dornogovi, Mongolia.

Horizon: Bain Shiren Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch-Lower Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

PIN unnumbered: Undescribed incomplete skull with cranial roof, occipital part and brain case.

 

Locality: Baga Tarjach, Dornogovi, Eastern Mongolia.

Horizon: Bain Shiren Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch-Lower Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

PIN unnumbered: Undescribed fragment of maxilla with 8 teeth.