Udanoceratops

Udanoceratops (meaning "Udan-Sayr horn face") is an extinct genus of leptoceratopsid ceratopsian dinosaur. It lived during the Late Cretaceous Period in the Campanian faunal stage. Its fossils were found in Mongolia.

Discovery
Udanoceratops is known only from the holotype specimen, a large and almost complete skull, which was 60 centimeters long (24 in) and moderately well preserved. It is the largest leptoceratopsid known so far. Like other leptoceratopsids, the skull had a short frill and no horns over the eyes or nose; the animal is estimated at about 4 meters long (13 ft). The holotype was collected in the Udan-Sayr locality from the Djadokhta Formation in Ömnögovi Province, dating to the Campanian stage of the Late Cretaceous period, about 83.5-70.6 million years ago. In 2007, Udanoceratops aff. tschizhovi was described based on a single specimen from the Campanian-stage Barun Goyot Formation, in Dornogovi Province.

Etymology
Udanoceratops was first named by Sergei Kurzanov in 1992 and the type species is Udanoceratops tschizhovi. The generic name is derived from the name of the locality in which the holotype was found (Udan-Sayr) and Greek ceras/κέρας meaning "horn" and -ops/ωψ meaning "face".