Khaan

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This article is about the dinosaur. For the Mongol monarchy, see Khagan. For other uses, see Khan (disambiguation).
Khaan
Temporal range: Late Cretaceous, 84–75Ma
Khaan.jpg
Holotype IGM 100/1127
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Suborder: Theropoda
Clade: Oviraptorosauria
Family: Oviraptoridae
Subfamily: Oviraptorinae
Genus: Khaan
Clark, Norell & Barsbold, 2001
Species: † K. mckennai
Binomial name
Khaan mckennai
Clark, Norell, & Barsbold, 2001

Khaan (/ˈkɑːn/; Mongol [χaːŋ] 'lord') was an oviraptorid dinosaur that was found in the Djadochta Formation of Mongolia and lived in the Late Cretaceous Period (Campanian), 75 million years ago.

Discovery[edit]

Artist's impression
Skull of referred specimen IGM 100/973

The type species Khaan mckennai was in 2001 named by James M. Clark e.a. The genus name is derived from Mongol khaan, "lord" or "ruler". The specific name honours the paleontologist Malcolm Carnegie McKenna.

The holotype IGM 100/1127, consists of an almost complete skeleton found together with another specimen, IGM 100/1002. Together they were informally referred to as "Romeo and Juliet". These individuals are about four feet long. A third, considerably larger, specimen, IGM 100/973, was referred to the species.

Description[edit]

Khaan did not differ much from other oviraptorids. At first, its remains were assigned to "Ingenia", but the Khaan manual structure, lacking the expansion of the upper third metacarpal, was considered to differ sufficiently from that of "Ingenia" for it to be assigned to its own genus.

The oviraptorid diet is disputed, with eggs, plants and molluscs having been suggested. Like other oviraptorids, Khaan was probably at least partially a meat eater, feeding on small vertebrates like mammals, lizards and possibly other small dinosaurs. It was also probably feathered.

Classification[edit]

Skeletal restoration

Khaan was by Clark assigned to the Oviraptoridae. Among oviraptorids, it was probably more closely related to Conchoraptor.

The cladogram below follows an analysis by Fanti et al., 2012.[1]

Oviraptoridae

Oviraptor


unnamed

Rinchenia



Citipati



unnamed

Khaan


unnamed

Conchoraptor


unnamed

Machairasaurus


unnamed

"Ingenia" (=Ajancingenia)


unnamed

Nemegtomaia



Heyuannia








References[edit]

  1. ^ Fanti F, Currie PJ, Badamgarav D (2012). "New Specimens of Nemegtomaia from the Baruungoyot and Nemegt Formations (Late Cretaceous) of Mongolia." PLoS ONE, 7(2): e31330. doi:10.1371/journal.pone.0031330
  • Clark, J. M., Norell, M. A. & Barsbold R. (2001) Two new oviraptorids (Theropoda:Oviraptorosauria), upper Cretaceous Djadokhta Formation, Ukhaa Tolgod, Mongolia. Journal of Vertebrate Paleontology 21(2): 209-213