Khaan
Khaan | ||||||||||||
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Khaan mckennai , graphic head study |
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Temporal occurrence | ||||||||||||
Upper Cretaceous (late Campanium ) | ||||||||||||
76.4 to 72 million years | ||||||||||||
Locations | ||||||||||||
Systematics | ||||||||||||
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Scientific name | ||||||||||||
Khaan | ||||||||||||
Clark, Norell & Barsbold , 2001 | ||||||||||||
Art | ||||||||||||
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Khaan is a theropod dinosaur from the group of oviraptorosauria from the Upper Cretaceous of Mongolia . The only species ( type species ) of this genus is Khaan mckennai .
Within the Oviraptorosauria, Khaan is classified as Oviraptoridae . Like other Oviraptorosauria, the Khaan was a two-legged , presumably feathered animal with a toothless beak and presumably a herbivorous or omnivorous diet.
Finds and naming
Khaan is known from three skeletons with skulls that were found at the Ukhaa Tolgod site in Ömnö-Gobi-Aimag , an aimag in Mongolia . Stratigraphically , the finds belong to the Djadochta Formation and are in the Upper Cretaceous (late Campanium ).
The holotype material (catalog number IGM 100/1127) is a complete skeleton, while the skeleton IGM 100/1002 found very close by is a nearly complete skeleton with the rear (distal) end of the tail missing. IGM 100/973 is another almost complete skeleton. Initially, the fossils were provisionally attributed to Ajancingenia , until the preparation revealed features, especially on the hands, that indicate a genus of their own.
In 2001 the new genus was scientifically described by Clark, Norell, and Barsbold .
The name Khaan is a Mongolian ruler titles while the Artepitheth mckennai Malcolm McKenna honors.
features
Khaan was about two meters long. Similar to Conchoraptor , Khaan lacked a skull crest, as found in some other Oviraptorids. Compared to Conchoraptor , the claws of the first and second fingers were more curved, and the third metacarpal was reduced at the proximal end. The ilium is similar to that of " Ingenia " and Conchoraptor .
Individual evidence
- ↑ a b James M. Clark, Mark A. Norell and Rinchen Barsboöd: Two new oviraptorids (Theropoda: Oviraptorosauria), Upper Cretaceous Djadokhta Formation, Ukhaa Tolgod, Mongolia. Journal of Vertebrate Paleontology 21 (2), 2001, pp. 209-213
- ↑ Halszka Osmólska , Philip J. Currie , Rinchen Barsbold : Oviraptorosauria. In: David B. Weishampel , Peter Dodson , Halszka Osmólska (eds.): The Dinosauria . 2nd edition. University of California Press, Berkeley CA et al. 2004, ISBN 0-520-24209-2 , pp. 165-183, here p. 182.