Jump to content

Natovenator: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
No edit summary
No edit summary
Line 24: Line 24:
[[File:Natovenator holotype postcrania.png|thumb|Body elements from the holotype]]
[[File:Natovenator holotype postcrania.png|thumb|Body elements from the holotype]]
In their [[Phylogenetics|phylogenetic analyses]], Lee ''et al''. (2022) recovered ''Natovenator'' as a derived member of the [[Halszkaraptorinae]], with ''Halszkaraptor'' being the most basal member of the group. The [[cladogram]] below displays the results of their phylogenetic analyses.<ref name="Natovenator" />
In their [[Phylogenetics|phylogenetic analyses]], Lee ''et al''. (2022) recovered ''Natovenator'' as a derived member of the [[Halszkaraptorinae]], with ''Halszkaraptor'' being the most basal member of the group. The [[cladogram]] below displays the results of their phylogenetic analyses.<ref name="Natovenator" />
{{clade| style=font-size:100%; line-height:100%;
{{clade| style=font-size:100%; line-height:100%;
|label1=[[Dromaeosauridae]]
|label1=[[Dromaeosauridae]]
Line 44: Line 43:
|3={{clade
|3={{clade
|1=''[[Bambiraptor]]'' [[File:Bambiraptor reconstruction.jpg|80px]]
|1=''[[Bambiraptor]]'' [[File:Bambiraptor reconstruction.jpg|80px]]
|2=[[Eudromaeosauria]] <div style="{{MirrorH}}">[[File:Deinonychus ewilloughby.png|80px]]</div>
|2=[[Eudromaeosauria]] <div style="{{MirrorH}}">[[File:Deinonychus ewilloughby.png|80px]]</div> }} }} }} }} }} }}
}} }} }} }} }} }}


==Paleoenvironment==
==Paleoecology==
[[File:Natovenator hunting fish.png|thumb|[[Paleoart|Life restoration]] of ''Natovenator'']]
[[File:Natovenator hunting fish.png|thumb|[[Paleoart|Life restoration]] of ''Natovenator'']]
The [[Barun Goyot Formation]] is regarded as [[Late Cretaceous]] in age (Upper [[Campanian]]) based on [[sediment]]s and fossil content. This formation is mostly characterized by [[red beds]], mostly light-coloured [[sand]]s (yellowish, grey-brown, and to a lesser extent reddish) that are well-cemented. Sandy [[claystone]]s (often red-coloured), [[siltstone]]s, [[Conglomerate (geology)|conglomerate]]s, and large-scale trough [[cross-stratification]] in sands are also common across the unit. In addition, structureless, medium-grained, fine-grained and very fine-grained [[sandstone]]s predominate in sediments of the Barun Goyot Formation. Overall geology of the formation indicates that sediments were deposited under relatively [[Desert climate|arid]] to [[semiarid climate]]s in [[alluvial plain]] (flat land consisting of sediments deposited by highland [[river]]s), [[lacustrine]], and [[Aeolian processes|aeolian]] paleoenvironments, with addition of other short-lived [[water bodies]].<ref>{{cite journal|last1=Gradziński|first1=R.|last2=Jerzykiewicz|first2=T.|date=1974|title=Sedimentation of the Barun Goyot Formation|journal=Palaeontologia Polonica|volume=30|pages=111−146|url=http://www.palaeontologia.pan.pl/Archive/1974_30_111-146_34-42.pdf}}</ref><ref>{{cite journal|last1=Gradziński|first1=R.|last2=Jaworowska|first2=Z. K.|last3=Maryańska|first3=T.|date=1977|title=Upper Cretaceous Djadokhta, Barun Goyot and Nemegt formations of Mongolia, including remarks on previous subdivisions|journal=Acta Geologica Polonica|volume=27|number=3|pages=281–326|url=https://geojournals.pgi.gov.pl/agp/article/view/9555/8104}}</ref><ref name=Enerthh2018>{{cite journal|last1=Eberth|first1=D. A.|date=2018|title=Stratigraphy and paleoenvironmental evolution of the dinosaur-rich Baruungoyot-Nemegt succession (Upper Cretaceous), Nemegt Basin, southern Mongolia|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=494|pages=29–50|bibcode=2018PPP...494...29E|doi=10.1016/j.palaeo.2017.11.018}}</ref>
The [[Barun Goyot Formation]] was a desert environment, similar to the area today, though Mongolia is known to have been slightly wetter during the [[Mesozoic]]. The Barun Goyot Formation dates to the Maastrichtian stage of the latest Cretaceous, some 70 million years ago. It is known to have possesed a wide range of fauna including many more dromaeosaurs (including ''[[Hulsanpes]]'', another halszkaraptorine) as well as many ornithischians and non-dinosaurian organisms.<ref>{{Cite journal |last=Owocki |first=Krzysztof |last2=Kremer |first2=Barbara |last3=Cotte |first3=Martin |last4=Bocherens |first4=Hervé |date=2020-01-01 |title=Diet preferences and climate inferred from oxygen and carbon isotopes of tooth enamel of Tarbosaurus bataar (Nemegt Formation, Upper Cretaceous, Mongolia) |url=https://www.sciencedirect.com/science/article/pii/S0031018218310538 |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |language=en |volume=537 |pages=109190 |doi=10.1016/j.palaeo.2019.05.012 |issn=0031-0182}}</ref><ref name="Natovenator" /><ref>{{Cite journal |last=Longrich |first=Nicholas R. |last2=Currie |first2=Philip J. |last3=Zhi-Ming |first3=Dong |date=2010-09-16 |title=A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia: A NEW OVIRAPTORID FROM BAYAN MANDAHU |url=https://onlinelibrary.wiley.com/doi/10.1111/j.1475-4983.2010.00968.x |journal=Palaeontology |language=en |volume=53 |issue=5 |pages=945–960 |doi=10.1111/j.1475-4983.2010.00968.x}}</ref>

The Barun Goyot Formation was also home to many other [[vertebrate]]s, including the [[ankylosaurid]]s ''[[Saichania]]'', ''[[Tarchia]]'' and ''[[Zaraapelta]]'';<ref>{{cite journal|last1=Arbour|first1=V. M.|last2=Currie|first2=P. J.|last3=Badamgarav|first3=D.|date=2014|title=The ankylosaurid dinosaurs of the Upper Cretaceous Baruungoyot and Nemegt formations of Mongolia|journal=Zoological Journal of the Linnean Society|volume=172|issue=3|pages=631−652|doi=10.1111/zoj.12185|doi-access=free}}</ref><ref>{{cite journal|last1=Park|first1=J.-Y.|last2=Lee|first2=Y. N.|last3=Currie|first3=P. J.|last4=Ryan|first4=M. J.|last5=Bell|first5=P.|last6=Sissons|first6=R.|last7=Koppelhus|first7=E. B.|last8=Barsbold|first8=R.|last9=Lee|first9=S.|last10=Kim|first10=S.-H.|date=2021|title=A new ankylosaurid skeleton from the Upper Cretaceous Baruungoyot Formation of Mongolia: its implications for ankylosaurid postcranial evolution|journal=Scientific Reports|volume=11|number=4101|page=4101|doi=10.1038/s41598-021-83568-4|doi-access=free|pmc=7973727|pmid=33737515}}</ref> [[alvarezsaurid]]s ''[[Khulsanurus]]'' and ''[[Parvicursor]]'';<ref>{{cite journal|last1=Averianov|first1=A. O.|last2=Lopatin|first2=A. V.|date=2022|title=A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs |journal=Journal of Systematic Palaeontology|volume=19 |issue=16 |pages=1097–1128 |doi=10.1080/14772019.2021.2013965 |s2cid=247222017 }}</ref> [[bird]]s ''[[Gobipipus]]'', ''[[Gobipteryx]]'' and ''[[Hollanda]]'';<ref>{{cite journal|last1=Bell|first1=A. K.|last2=Chiappe|first2=L. M.|last3=Erickson|first3=G. M.|last4=Suzuki|first4=S.|last5=Watabe|first5=M.|last6=Barsbold|first6=R.|last7=Tsogtbaatar|first7=K.|date=2010|title=Description and ecologic analysis of Hollanda luceria, a Late Cretaceous bird from the Gobi Desert (Mongolia)|journal=Cretaceous Research|volume=31|issue=1|pages=16−26|doi=10.1016/j.cretres.2009.09.001|url=https://www.researchgate.net/publication/229349737}}</ref> [[dromaeosaurid]]s ''[[Kuru kulla|Kuru]]'' and ''[[Shri devi|Shri]]'';<ref>{{cite journal|last1=Turner|first1=A. H.|last2=Montanari|first2=S.|last3=Norell|first3=M. A.|date=2021|title=A New Dromaeosaurid from the Late Cretaceous Khulsan Locality of Mongolia|journal=American Museum Novitates|number=3965|pages=1–48|doi=10.1206/3965.1|hdl=2246/7251|hdl-access=free|s2cid=231597229|issn=0003-0082|url=http://digitallibrary.amnh.org/bitstream/handle/2246/7251/N3965.pdf?sequence=1&isAllowed=y}}</ref><ref>{{cite journal|last1=Napoli|first1=J. G.|last2=Ruebenstahl|first2=A. A.|last3=Bhullar|first3=B.-A. S.|last4=Turner|first4=A. H.|last5=Norell|first5=M. A.|date=2021|title=A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia|journal=American Museum Novitates|number=3982|pages=1–47|doi=10.1206/3982.1|issn=0003-0082|hdl=2246/7286|hdl-access=free|url=https://digitallibrary.amnh.org/bitstream/handle/2246/7286/3982.pdf?sequence=1&isAllowed=y}}</ref> fellow [[halszkaraptorine]] ''[[Hulsanpes]]'';<ref>{{cite journal|last1=Cau|first1=A.|last2=Madzia|first2=D.|date=2018|title=Redescription and affinities of Hulsanpes perlei (Dinosauria, Theropoda) from the Upper Cretaceous of Mongolia|journal=PeerJ|volume=6|pages=e4868|doi=10.7717/peerj.4868|doi-access=free|pmc=5978397|pmid=29868277}}</ref> [[protoceratopsid]]s ''[[Bagaceratops]]'' and ''[[Breviceratops]]'';<ref>{{cite journal|last1=Czepiński|first1=Ł.|date=2019|title=Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert|journal=Historical Biology|volume=32 |issue=10 |pages=1394–1421|doi=10.1080/08912963.2019.1593404|s2cid=132780322 |url=http://dinosaurmailinglist.cmnh.org/2019Apr/pdfzmfpMk1aO4.pdf}}</ref> [[pachycephalosaurid]] ''[[Tylocephale]]'';<ref>{{cite journal|last1=Sullivan|first1=R. M.|date=2006|title=A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)|journal=New Mexico Museum of Natural History and Science Bulletin|issue=35|pages=347–365|url=https://www.researchgate.net/publication/240625747}}</ref> and [[oviraptorid]]s ''[[Conchoraptor]]'', ''[[Heyuannia]]'' and ''[[Nemegtomaia]]'';<ref>{{cite journal|last1=Fanti|first1=F.|last2=Currie|first2=P. J.|last3=Badamgarav|first3=D.|last4=Lalueza-Fox|first4=C.|date=2012|title=New specimens of ''Nemegtomaia'' from the Baruungoyot and Nemegt Formations (Late Cretaceous) of Mongolia|journal=PLOS ONE|volume=7|issue=2|pages=e31330|bibcode=2012PLoSO...731330F|doi=10.1371/journal.pone.0031330|doi-access=free|pmc=3275628|pmid=22347465}}</ref><ref>{{cite journal|last1=Funston|first1=G. F.|last2=Mendonca|first2=S. E.|last3=Currie|first3=P. J.|last4=Barsbold|first4=R.|last5=Barsbold|first5=R.|date=2018|title=Oviraptorosaur anatomy, diversity and ecology in the Nemegt Basin|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=494|pages=101–120|doi=10.1016/j.palaeo.2017.10.023|bibcode=2018PPP...494..101F|url=https://drive.google.com/file/d/1ydVF-p_qKu2NIL7fKb3zJydai_eurXts/view}}</ref> and the [[Megafauna|large]] sauropod ''[[Quaesitosaurus]]''.<ref>{{cite journal|last1=Kurzanov|first1=S. M.|last2=Bannikov|first2=A. F.|date=1983|title=A new sauropod from the Upper Cretaceous of Mongolia|journal=Paleontological Journal|volume=2|pages=90−96|url=https://moam.info/a-new-sauropod-from-the-upper-cretaceous-of-mongolia_5b764105097c4785168b45fe.html}}</ref>


== See also ==
== See also ==

Revision as of 17:55, 5 December 2022

Natovenator
Temporal range: Maastrichtian, 72–71 Ma
↓
Skeletal reconstruction, based on the holotype
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: †Dromaeosauridae
Subfamily: †Halszkaraptorinae
Genus: †Natovenator
Lee et al., 2022
Species:
†N. polydontus
Binomial name
†Natovenator polydontus
Lee et al., 2022

Natovenator is a genus of halszkaraptorine dromaeosaurid dinosaur from the Late Cretaceous Barun Goyot Formation of Mongolia. The genus is known from a single species, N. polydontus. Natovenator is crucial to the understanding of halszkaraptorines due to it providing more support for the semi-aquatic lifestyle that has been proposed for this clade.[1] This discovery is important as the semi-aquatic lifestyles of halszkaraptorines (mainly Halszkaraptor) was contested earlier in 2022.[2]

Discovery and naming

Holotype block

The Natovenator holotype specimen, MPC-D 102/114, was found in sediments of the Barun Goyot Formation of Omnogovi Province, Mongolia. It consists of a mostly articulated skeleton with a nearly complete skull.[1]

In 2022, Natovenator polydontus was described as a new genus and species of halszkaraptorine theropod dinosaurs by Sungjin Lee, Yuong-Nam Lee, Philip J. Currie, Robin Sissons, Jin-Young Park, Su-Hwan Kim, Rinchen Barsbold, and Khishigjav Tsogtbaatar based on these remains. The generic name, "Natovenator", is derived from the Latin words "nato", meaning "to swim", and "venator", meaning "hunter", in reference to its piscivorous diet and possible swimming behaviour. The specific name, "polydontus", is derived from the Greek words "polys", meaning "many", and "odous", meaning "tooth".[1]

Description

Holotype skull

Natovenator was a very small theropod, comparable in appearance to extant waterfowl, like other members of the Halszkaraptorinae. Natovenator is different from other halszkaraptorines due to features such as a wide groove delimited by a pair of ridges on the anterodorsal surface of the premaxilla, a premaxilla with an elongated internarial process that overlies nasal and extends posterior to the external naris, 13 premaxillary teeth with large and incisiviform crowns, the absence of pleurocoels in cervical vertebrae, and an hourglass-shaped metacarpal II, among other features. The parapophyses in its vertebrae are similar to the extinct Hesperornithiformes, which were toothed diving birds.[1]

Classification

Body elements from the holotype

In their phylogenetic analyses, Lee et al. (2022) recovered Natovenator as a derived member of the Halszkaraptorinae, with Halszkaraptor being the most basal member of the group. The cladogram below displays the results of their phylogenetic analyses.[1]

Dromaeosauridae

Paleoenvironment

Life restoration of Natovenator

The Barun Goyot Formation is regarded as Late Cretaceous in age (Upper Campanian) based on sediments and fossil content. This formation is mostly characterized by red beds, mostly light-coloured sands (yellowish, grey-brown, and to a lesser extent reddish) that are well-cemented. Sandy claystones (often red-coloured), siltstones, conglomerates, and large-scale trough cross-stratification in sands are also common across the unit. In addition, structureless, medium-grained, fine-grained and very fine-grained sandstones predominate in sediments of the Barun Goyot Formation. Overall geology of the formation indicates that sediments were deposited under relatively arid to semiarid climates in alluvial plain (flat land consisting of sediments deposited by highland rivers), lacustrine, and aeolian paleoenvironments, with addition of other short-lived water bodies.[3][4][5]

The Barun Goyot Formation was also home to many other vertebrates, including the ankylosaurids Saichania, Tarchia and Zaraapelta;[6][7] alvarezsaurids Khulsanurus and Parvicursor;[8] birds Gobipipus, Gobipteryx and Hollanda;[9] dromaeosaurids Kuru and Shri;[10][11] fellow halszkaraptorine Hulsanpes;[12] protoceratopsids Bagaceratops and Breviceratops;[13] pachycephalosaurid Tylocephale;[14] and oviraptorids Conchoraptor, Heyuannia and Nemegtomaia;[15][16] and the large sauropod Quaesitosaurus.[17]

See also

References

  1. ^ a b c d e Lee, Sungjin; Lee, Yuong-Nam; Currie, Philip J.; Sissons, Robin; Park, Jin-Young; Kim, Su-Hwan; Barsbold, Rinchen; Tsogtbaatar, Khishigjav (2022). "A non-avian dinosaur with a streamlined body exhibits potential adaptations for swimming". Communications Biology. 5 (1): 1–9. doi:10.1038/s42003-022-04119-9. ISSN 2399-3642.
  2. ^ Fabbri, Matteo; Navalón, Guillermo; Benson, Roger B. J.; Pol, Diego; O’Connor, Jingmai; Bhullar, Bhart-Anjan S.; Erickson, Gregory M.; Norell, Mark A.; Orkney, Andrew; Lamanna, Matthew C.; Zouhri, Samir; Becker, Justine; Emke, Amanda; Dal Sasso, Cristiano; Bindellini, Gabriele; Maganuco, Simone; Auditore, Marco; Ibrahim, Nizar (March 23, 2022). "Subaqueous foraging among carnivorous dinosaurs". Nature. 603 (7903): 852–857. Bibcode:2022Natur.603..852F. doi:10.1038/s41586-022-04528-0. PMID 35322229. S2CID 247630374.
  3. ^ Gradziński, R.; Jerzykiewicz, T. (1974). "Sedimentation of the Barun Goyot Formation" (PDF). Palaeontologia Polonica. 30: 111−146.
  4. ^ Gradziński, R.; Jaworowska, Z. K.; Maryańska, T. (1977). "Upper Cretaceous Djadokhta, Barun Goyot and Nemegt formations of Mongolia, including remarks on previous subdivisions". Acta Geologica Polonica. 27 (3): 281–326.
  5. ^ Eberth, D. A. (2018). "Stratigraphy and paleoenvironmental evolution of the dinosaur-rich Baruungoyot-Nemegt succession (Upper Cretaceous), Nemegt Basin, southern Mongolia". Palaeogeography, Palaeoclimatology, Palaeoecology. 494: 29–50. Bibcode:2018PPP...494...29E. doi:10.1016/j.palaeo.2017.11.018.
  6. ^ Arbour, V. M.; Currie, P. J.; Badamgarav, D. (2014). "The ankylosaurid dinosaurs of the Upper Cretaceous Baruungoyot and Nemegt formations of Mongolia". Zoological Journal of the Linnean Society. 172 (3): 631−652. doi:10.1111/zoj.12185.
  7. ^ Park, J.-Y.; Lee, Y. N.; Currie, P. J.; Ryan, M. J.; Bell, P.; Sissons, R.; Koppelhus, E. B.; Barsbold, R.; Lee, S.; Kim, S.-H. (2021). "A new ankylosaurid skeleton from the Upper Cretaceous Baruungoyot Formation of Mongolia: its implications for ankylosaurid postcranial evolution". Scientific Reports. 11 (4101): 4101. doi:10.1038/s41598-021-83568-4. PMC 7973727. PMID 33737515.
  8. ^ Averianov, A. O.; Lopatin, A. V. (2022). "A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs". Journal of Systematic Palaeontology. 19 (16): 1097–1128. doi:10.1080/14772019.2021.2013965. S2CID 247222017.
  9. ^ Bell, A. K.; Chiappe, L. M.; Erickson, G. M.; Suzuki, S.; Watabe, M.; Barsbold, R.; Tsogtbaatar, K. (2010). "Description and ecologic analysis of Hollanda luceria, a Late Cretaceous bird from the Gobi Desert (Mongolia)". Cretaceous Research. 31 (1): 16−26. doi:10.1016/j.cretres.2009.09.001.
  10. ^ Turner, A. H.; Montanari, S.; Norell, M. A. (2021). "A New Dromaeosaurid from the Late Cretaceous Khulsan Locality of Mongolia" (PDF). American Museum Novitates (3965): 1–48. doi:10.1206/3965.1. hdl:2246/7251. ISSN 0003-0082. S2CID 231597229.
  11. ^ Napoli, J. G.; Ruebenstahl, A. A.; Bhullar, B.-A. S.; Turner, A. H.; Norell, M. A. (2021). "A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia" (PDF). American Museum Novitates (3982): 1–47. doi:10.1206/3982.1. hdl:2246/7286. ISSN 0003-0082.
  12. ^ Cau, A.; Madzia, D. (2018). "Redescription and affinities of Hulsanpes perlei (Dinosauria, Theropoda) from the Upper Cretaceous of Mongolia". PeerJ. 6: e4868. doi:10.7717/peerj.4868. PMC 5978397. PMID 29868277.
  13. ^ Czepiński, Ł. (2019). "Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert" (PDF). Historical Biology. 32 (10): 1394–1421. doi:10.1080/08912963.2019.1593404. S2CID 132780322.
  14. ^ Sullivan, R. M. (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)". New Mexico Museum of Natural History and Science Bulletin (35): 347–365.
  15. ^ Fanti, F.; Currie, P. J.; Badamgarav, D.; Lalueza-Fox, C. (2012). "New specimens of Nemegtomaia from the Baruungoyot and Nemegt Formations (Late Cretaceous) of Mongolia". PLOS ONE. 7 (2): e31330. Bibcode:2012PLoSO...731330F. doi:10.1371/journal.pone.0031330. PMC 3275628. PMID 22347465.
  16. ^ Funston, G. F.; Mendonca, S. E.; Currie, P. J.; Barsbold, R.; Barsbold, R. (2018). "Oviraptorosaur anatomy, diversity and ecology in the Nemegt Basin". Palaeogeography, Palaeoclimatology, Palaeoecology. 494: 101–120. Bibcode:2018PPP...494..101F. doi:10.1016/j.palaeo.2017.10.023.
  17. ^ Kurzanov, S. M.; Bannikov, A. F. (1983). "A new sauropod from the Upper Cretaceous of Mongolia". Paleontological Journal. 2: 90−96.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=Natovenator&oldid=1125756673"