Rinchenia

Rinchenia mongoliensis, drawing head study

  • Mongolia ( Nemegt Formation)
  • Rinchenia mongoliensis ( bars Bold, 1986)

Rinchenia is a genus theropod dinosaur from the group of Oviraptorosauria from the Upper Cretaceous of Mongolia. The only known species is Rinchenia mongoliensis.

Rinchenia was a great Oviraptoride with a skull crest. Like other Oviraptorosauria it was a bipedal ( two-legged ) running, probably feathered animal that had a toothless beak and probably malnourished plant or omnivorous.

Discovery

So far, only a single, nearly complete skeleton known ( holotype, specimen number 100/32A GI ), which was discovered at Altan Ula in the Mongolian Gobi Aimag Ömnö. Stratigraphically the Fund comes from the Nemegt lineup and is attributed to the early Maastrichtian.

Originally described Rinchen bars Bold (1986 ) this find as a new species of Oviraptor, Oviraptor mongoliensis until 1997, the new genus Rinchenia aufstellte. However, since bars Bold did not provide any specific features for the new genus, was the name Rinchenia as a noun nudum ( ' naked name " ) until it. Osmólska of et al (2004 ) was used.

Features

Rinchenia was about 2.5 meters in length to the larger Oviraptoriden. His skull crest stretched nearly the entire skull and reached the highest point above the lacrimal bone ( lacrimal ). In addition to the premaxillary bone ( premaxilla ), the nose ( nasal ) and the prefrontal ( frontal ) was also the parietal ( parietal ) involved in the formation of the comb. The sacrum consisted of 6 and the tail of 32 vertebrae. In contrast to the Oviraptor Postkranium ( the residual skeleton that joins the skull) was designed to be lighter and the cervical vertebrae is not as high.

Swell

  • Halszka Osmólska, Philip J. Currie, Rinchen bars Bold: Oviraptorosauria. In: David B. Weishampel, Peter Dodson and Halszka Osmólska (eds.): The Dinosauria. 2nd edition. University of California Press, Berkeley, 2004, ISBN 0-520-24209-2, pp. 182, 168
  • Rinchen bars Bold: Oviraptorosauria. In: PJ Currie, K. Padian (ed.): Encyclopedia of Dinosaurs. Academic Press, San Diego, 1997, p 506
Mya (unit) Fossil Maniraptora Provinces of Mongolia Nomen nudum Nasal bone
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