Nemegtomaia

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Nemegtomaia
Temporal range: Late Cretaceous, 70 Ma
File:Nemegtomaia barsboldi profile1.jpg
Profile restoration
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Oviraptoridae
Subfamily: Oviraptorinae
Genus: †Nemegtomaia
Species:
† N. barsboldi
Binomial name
Nemegtomaia barsboldi
(Lü et al., 2004) [originally Nemegtia, preoccupied]
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Nemegtomaia ("Nemegt mother") is a genus of oviraptorid dinosaur from the late Cretaceous Period of what is now Mongolia. The type species, Nemegtomaia barsboldi, was described by Lü, Tomida, Azuma, Dong, and Lee in 2004.[1]et al. originally called the dinosaur Nemegtia, a name which was found to have already been used for an ostracod from the same formation (in the Nemegt Basin). The dinosaur was therefore renamed Nemegtomaia in 2005.[2]

File:Nemegtomaia.png
Skeletal diagrams showing the remains of the three known specimens in gray

Nemegtomaia is known from relatively good remains and a notably well-preserved skull. The same authors had identified this skull in 2002, as a species of "Ingenia" (now Ajancingenia).[3] Despite this early misidentification, Nemegtomaia belongs to the subfamily Oviraptorinae, not Ingeniinae and may be a close relative of Citipati. Two further specimens were described in 2012. One of these was found associated with a nest with eggs, and this specimen also showed evidence of having been scavenged upon by Skin beetles.[4]

Classification

The cladogram below follows an analysis by Fanti et al., 2012.[4]

Oviraptoridae

Oviraptor


unnamed

Rinchenia



Citipati



unnamed

Khaan


unnamed

Conchoraptor


unnamed

Machairasaurus


unnamed

"Ingenia" (=Ajancingenia)


unnamed

Nemegtomaia



Heyuannia









See also

References

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External links

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  1. Lü, J., Tomida, Y., Azuma, Y., Dong, Z. & Lee, Y.-N. (2004). "New oviraptorid dinosaur (Dinosauria: Oviraptorosauria) from the Nemegt Formation of southwestern Mongolia." Bulletin of the National Science Museum, Tokyo, Series C 30: 95-130.
  2. Lü, J., Tomida, Y., Azuma, Y., Dong, Z. & Lee, Y.-N. (2005). "Nemegtomaia gen. nov., a replacement name for the oviraptorosaurian dinosaur Nemegtia Lü et al., 2004, a preoccupied name." Bulletin of the National Science Museum, Tokyo, Series C 31: 51.
  3. Lü, J., Dong, Z., Azuma, Y., Barsbold, R. & Tomida, Y. (2002). "Oviraptorosaurs compared to birds." In Zhou, Z. & Zhang, F. (eds). Proceedings of the 5th Symposium of the Society of Avian Paleontology and Evolution. Science Press (Beijing), pp. 175-189.
  4. 4.0 4.1 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