Nemegtomaia: Difference between revisions
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| name = ''Nemegtomaia'' |
| name = ''Nemegtomaia'' |
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| fossil_range = [[Late Cretaceous]], {{fossilrange|70}} |
| fossil_range = [[Late Cretaceous]], {{fossilrange|70}} |
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| image = Nemegtomaia barsboldi |
| image = Nemegtomaia barsboldi holotype.jpg |
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| image_width = 250px |
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| image_caption = |
| image_caption = Skeletal diagram of the [[holotype specimen]] (MPC-D 100/2112) |
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| genus = Nemegtomaia |
| genus = Nemegtomaia |
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| genus_authority = Lü ''et al.'', 2005 |
| genus_authority = Lü ''et al.'', 2005 |
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'''''Nemegtomaia''''' ("Nemegt mother") is a [[genus]] of [[oviraptorid]] [[dinosaur]] from the late [[Cretaceous]] [[Period (geology)|Period]] of what is now [[Mongolia]]. The type species, ''Nemegtomaia barsboldi'', was described by Lü, Tomida, Azuma, Dong, and Lee in 2004.<ref name="Luetal2004">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.</ref> Lü ''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.<ref name="luetal2005">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.</ref> |
'''''Nemegtomaia''''' ("Nemegt mother") is a [[genus]] of [[oviraptorid]] [[dinosaur]] from the late [[Cretaceous]] [[Period (geology)|Period]] of what is now [[Mongolia]]. |
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==Description== |
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[[File:Nemegtomaia barsboldi profile1.jpg|thumb|left|Restoration of the head and neck]] |
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As in most other oviraptorids, the fornt part of the lower jaw was downturned.<ref>{{cite journal|last1=Lü|first1=J.|last2=Yi|first2=L.|last3=Zhong|first3=H.|last4=Wei|first4=X.|last5=Dodson|first5=P.|title=A New Oviraptorosaur (Dinosauria: Oviraptorosauria) from the Late Cretaceous of Southern China and Its Paleoecological Implications|journal=PLoS ONE|date=2013|volume=8|issue=11|pages=e80557|doi=10.1371/journal.pone.0080557}}</ref> |
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==History of discovery== |
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[[File:Nemegtomaia.png|thumb|Skeletal diagrams of the three known specimens, with preserved elements in grey]] |
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The type species, ''Nemegtomaia barsboldi'', was described by Lü, Tomida, Azuma, Dong, and Lee in 2004.<ref name="Luetal2004">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.</ref> Lü ''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.<ref name="luetal2005">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.</ref> |
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[[File:Nemegtomaia.png|thumb|left|Skeletal diagrams showing the remains of the three known specimens in gray]] |
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| ⚫ | ''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]]'').<ref name="Luetal2002">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.</ref> Despite this early misidentification, ''Nemegtomaia'' belongs to the subfamily Oviraptorinae, not Ingeniinae and may be a close relative of ''[[Citipati (dinosaur)|Citipati]]''. |
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| ⚫ | |||
| ⚫ | ''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]]'').<ref name="Luetal2002">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.</ref> Despite this early misidentification, ''Nemegtomaia'' belongs to the subfamily Oviraptorinae, not Ingeniinae and may be a close relative of ''[[Citipati (dinosaur)|Citipati]]''. |
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==Classification== |
==Classification== |
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The presence of a crest makes it unlikely to have been an ingeniine.<ref name="Longrich">{{cite journal|last1=LONGRICH|first1=NICHOLAS R.|last2=CURRIE|first2=PHILIP J.|last3=ZHI-MING|first3=DONG|title=A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia|journal=Palaeontology|date=2010|volume=53|issue=5|pages=945–960|doi=10.1111/j.1475-4983.2010.00968.x}}</ref> |
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The [[cladogram]] below follows an analysis by Fanti ''et al.'', 2012.<ref name="fanti2012" /> |
The [[cladogram]] below follows an analysis by Fanti ''et al.'', 2012.<ref name="fanti2012" /> |
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{{clade| style=font-size:90%;line-height:90% |
{{clade| style=font-size:90%;line-height:90% |
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|label1= |
|label1=[[Oviraptoridae]] |
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|1={{clade |
|1={{clade |
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|1=''[[Oviraptor]]'' |
|1=''[[Oviraptor]]'' |
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|label2= <span style="color:white;">unnamed</span> |
|label2= <span style="color:white;">unnamed</span> |
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|2={{clade |
|2={{clade |
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|1=''Nemegtomaia'' |
|1='''''Nemegtomaia''''' |
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|2=''[[Heyuannia]]'' }} }} }} }} }} }} }} |
|2=''[[Heyuannia]]'' }} }} }} }} }} }} }} |
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==Palaeobiology== |
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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]].<ref name="fanti2012">Fanti F, Currie PJ, Badamgarav D (2012). "[http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0031330 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</ref> |
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It is unlikely that ''Nemegtomaia'' had a kinetic skull.<ref>{{cite journal|last1=Hendrickx|first1=C.|last2=Araújo|first2=R.|last3=Mateus|first3=O.|title=The non-avian theropod quadrate I: standardized terminology with an overview of the anatomy and function.|journal=PeerJ|date=2015|volume=3|pages=e1245|pmid=26401455}}</ref> |
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==See also== |
==See also== |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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==External links== |
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{{Wikispecies|Nemegtomaia}} |
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* http://www.thescelosaurus.com/oviraptorosauria.htm |
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* http://darrennaish.blogspot.com/2006/02/luis-rey-and-new-oviraptorosaur.html |
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{{Portal|Dinosaurs}} |
{{Portal|Dinosaurs}} |
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Revision as of 04:58, 30 August 2016
| Nemegtomaia Temporal range: Late Cretaceous,
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|---|---|
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| Skeletal diagram of the holotype specimen (MPC-D 100/2112) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Family: | †Oviraptoridae |
| Genus: | †Nemegtomaia |
| Species: | †N. barsboldi
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| 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.
Description
As in most other oviraptorids, the fornt part of the lower jaw was downturned.[1]
History of discovery
The type species, Nemegtomaia barsboldi, was described by Lü, Tomida, Azuma, Dong, and Lee in 2004.[2] Lü 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.[3]
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).[4] Despite this early misidentification, Nemegtomaia belongs to the subfamily Oviraptorinae, not Ingeniinae and may be a close relative of Citipati.
Classification
The presence of a crest makes it unlikely to have been an ingeniine.[5]
The cladogram below follows an analysis by Fanti et al., 2012.[6]
| Oviraptoridae |
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Palaeobiology
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.[6]
It is unlikely that Nemegtomaia had a kinetic skull.[7]
See also
References
- ^ Lü, J.; Yi, L.; Zhong, H.; Wei, X.; Dodson, P. (2013). "A New Oviraptorosaur (Dinosauria: Oviraptorosauria) from the Late Cretaceous of Southern China and Its Paleoecological Implications". PLoS ONE. 8 (11): e80557. doi:10.1371/journal.pone.0080557.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - ^ 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.
- ^ 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.
- ^ 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.
- ^ LONGRICH, NICHOLAS R.; CURRIE, PHILIP J.; ZHI-MING, DONG (2010). "A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia". Palaeontology. 53 (5): 945–960. doi:10.1111/j.1475-4983.2010.00968.x.
- ^ a b 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
- ^ Hendrickx, C.; Araújo, R.; Mateus, O. (2015). "The non-avian theropod quadrate I: standardized terminology with an overview of the anatomy and function". PeerJ. 3: e1245. PMID 26401455.
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