[D] Protoceratops hellenikorhinus [Su]
Describer
Lambert, Godefroit, Li, Shang, and Dong, 2001
Time
Cretaceous Late Campanian
Classification
Ornithischia Genasauria Cerapoda Marginocephalia Ceratopia Neoceratopia Protoceratopidae
Diet
Herbivore
Fossilsite
Wulansuhai Formation, Bayan Madahu, Inner Mongolia, China
Fall Under
Protoceratops andrewsi
Info
Skull
Protoceratops andrewsi Granger & Gregory, 1923) > Protoceratops hellenikorhinus (Lambert, Godefroit, Li, Shang, and Dong, 2001)
A very weird protoceratopsian based on numerous specimens from Bayan Madahu Formation in a growth series, Protoceratops hellenikorhinus is larger than Protoceratops andrewsi, the frill has a chevron-shaped distal margin, kind of like a lot of chasmosaurines, the jugal horn is absolutely enormous, though more of a tongue-shaped thing than a real, pointed \\\\\\\\\\\\\\\"horn,\\\\\\\\\\\\\\\". Males have a more pronounced nasal horn, which is split into two small side-by-side horns and the palpebral sticks up well above the eye and just behind the nasal horn.
Holotype
IMM 95BM1-1, nearly complete skull (male) Paratype IMM 96VM1/4, almost complete skull from the same locality. Other referred material: IMM 96BM5/5, IMM 96BM1/1, IMM 98BN1/7, IMM 96BM5/2, IMM 96MB5/3, IMM 96BM6/1, various partial skulls; IMM 96BM6/4, skull being associatedwith a series of caudal vertebrae and a right hindlimb.
Known material
Nine incomplete skulls, postcranial remians, subadult to adult, male and female.
Diagnosis
Ventral edge of dentary straight, caudal edge of angular formed by caudally facing triangular surface; long projection of squamosal contacting quadratojugal; straight, strongly reduced longitudal ridge on maxialla. (Lambert, Godefroit, Li. Shang and Dong , 2001)