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{{Short description|Extinct genus of reptiles}}
{{italic title}}
{{Italic title}}
{{Taxobox
{{Automatic taxobox
| name = ''Wumengosaurus''
| name = ''Wumengosaurus''
| taxon = Wumengosaurus
| fossil_range = Middle [[Triassic]]
| fossil_range = [[Anisian]], {{fossil_range|247.2|242}}
| regnum = [[Animal]]ia
| image = Wumengosaurus_NT_small.jpg
| phylum = [[Chordate|Chordata]]
| authority = Jiang ''et al.'', [[2008 in paleontology|2008]]
| classis = [[Reptilia]]
| type_species = {{extinct}}'''''Wumengosaurus delicatomandibularis'''''
| superordo = [[extinction|†]][[Sauropterygia]]
| type_species_authority = Jiang ''et al.'', 2008
| genus = ''Wumengosaurus''
| subdivision_ranks = Other [[species]]
| genus_authority = Jiang et al. 2008<ref>{{cite journal | doi = 10.1671/0272-4634-28.4.1055 | title = A New Middle Triassic Eosauropterygian (Reptilia, Sauropterygia) from Southwestern China | year = 2008 | last1 = Jiang | first1 = Da-Yong | last2 = Rieppel | first2 = Olivier | last3 = Motani | first3 = Ryosuke | last4 = Hao | first4 = Wei-Cheng | last5 = Sun | first5 = Yuan-Lin | last6 = Schmitz | first6 = Lars | last7 = Sun | first7 = Zuo-Yu | journal = Journal of Vertebrate Paleontology | volume = 28 | issue = 4 | pages = 1055–1062
| subdivision = * {{extinct}}'''''W. rotundicarpus''''' {{small|Qin ''et al''. [[2021 in reptile paleontology|2021]]}}
}}</ref>
| subdivision_ranks = [[Species]]
| subdivision =
* ''W. delicatomandibularis'' <small>([[Type (zoology)|type]])</small>
}}
}}

'''''Wumengosaurus''''' is an aquatic eosauropterygian from the Middle Triassic [[Guanling Formation]] of [[China]].
'''''Wumengosaurus''''' is an [[extinct]] aquatic [[reptile]] from the [[Middle Triassic]] (late [[Anisian]] stage) [[Guanling Formation]] of [[Guizhou]], southwestern [[China]]. It was originally described as a [[basal (phylogenetics)|basal]] [[eosauropterygia]]n and usually is recovered as such by [[phylogenetic analyses]],<ref name = "Jiang et al., 2008">{{cite journal | doi = 10.1671/0272-4634-28.4.1055 | title = A New Middle Triassic Eosauropterygian (Reptilia, Sauropterygia) from Southwestern China | year = 2008 | last1 = Jiang | first1 = Da-Yong | last2 = Rieppel | first2 = Olivier | last3 = Motani | first3 = Ryosuke | last4 = Hao | first4 = Wei-Cheng | last5 = Sun | first5 = Yuan-Lin | last6 = Schmitz | first6 = Lars | last7 = Sun | first7 = Zuo-Yu | journal = Journal of Vertebrate Paleontology | volume = 28 | issue = 4 | pages = 1055–1062| bibcode = 2008JVPal..28.1055J | s2cid = 83909484 }}</ref><ref name=Qianxisaurus>{{Cite journal | last1 = Cheng | first1 = Y. N. | last2 = Wu | first2 = X. C. | last3 = Sato | first3 = T. | last4 = Shan | first4 = H. Y. | title = A new eosauropterygian (Diapsida, Sauropterygia) from the Triassic of China | doi = 10.1080/02724634.2012.695983 | journal = Journal of Vertebrate Paleontology | volume = 32 | issue = 6 | pages = 1335 | year = 2012 | bibcode = 2012JVPal..32.1335C | s2cid = 85253142 }}</ref><ref name=Majiashanosaurus>{{Cite journal|author=Da-Yong Jiang|author2=Ryosuke Motani|author3=Andrea Tintori|author4=Olivier Rieppel|author5=Guan-Bao Chen|author6=Jian-Dong Huang|author7=Rong Zhang|author8=Zuo-Yu Sun|author9=Cheng Ji|name-list-style=amp |year=2014 |title=The Early Triassic eosauropterygian ''Majiashanosaurus discocoracoidis'', gen. et sp. nov. (Reptilia, Sauropterygia), from Chaohu, Anhui Province, People's Republic of China |journal=Journal of Vertebrate Paleontology |volume=34 |issue=5 |pages=1044–1052 |doi=10.1080/02724634.2014.846264 |bibcode=2014JVPal..34.1044J |s2cid=129828376}}</ref> although one phylogeny has placed it as the sister taxon to [[Ichthyosauromorpha]] while refraining from a formal re-positioning.<ref name = "Chen et al., 2014">{{cite journal | doi = 10.1371/journal.pone.0102361 | title = The enigmatic marine reptile ''Nanchangosaurus'' from the Lower Triassic of Hubei, China and the phylogenetic affinities of Hupehsuchia | year = 2014 | last1 = Chen | first1 = Xiao-hong | last2 = Motani | first2 = Ryosuke | last3 = Long | first3 = Chen | last4 = Jiang | first4 = Da-Yong | last5 = Rieppel | first5 = Olivier | journal = PLOS ONE | volume = 9 | issue = 7 | pages = e102361 | pmid=25014493 | pmc=4094528| bibcode = 2014PLoSO...9j2361C | doi-access = free }}</ref> It was a relatively small reptile, measuring {{cvt|95.5|-|130.5|cm|ft}} in total body length.<ref name = "Jiang et al., 2008"/>

In 2021, Qin ''et al''. described an additional specimen from Guizhou ([[Panzhou|Panzhou District]]) as a new species of ''Wumengosaurus'', ''W. rotundicarpus''.<ref name=rotundicarpus>{{Cite journal |last1=Qin |first1=Yanjiao |last2=He |first2=Xiao |last3=Luo |first3=Yongming |last4=Hu |first4=Xinrui |last5=Jiang |first5=Liangbing |last6=Deng |first6=Xiaojie |last7=Shi |first7=Zhenhua |last8=Ran |first8=Weiyu |date=2021 |title=A New Species of ''Wumengosaurus'' from Panxian Fauna in Middle Triassic of Guizhou Province |url=https://jglobal.jst.go.jp/detail?JGLOBAL_ID=202202267969890152 |journal=Guizhou Geology |language=lzh |volume=38 |issue=4 |pages=373–381 |issn=1000-5943}}</ref>

==Classification==
In the 2023 [[Species description|description]] of ''[[Luopingosaurus]]'', Xu ''et al''. recovered ''Wumengosaurus'' as a derived [[pachypleurosaurid]], as the [[sister taxon]] to the clade formed by ''Luopingosaurus'' and ''[[Honghesaurus]]''. The results of their [[phylogenetic analyses]] are shown in the [[cladogram]] below:<ref name=Luopingosaurus>{{Cite journal|last1=Xu |first1=G.-H. |last2=Shang |first2=Q.-H. |last3=Wang |first3=W. |last4=Ren |first4=Y. |last5=Lei |first5=H. |last6=Liao |first6=J.-L. |last7=Zhao |first7=L.-J. |last8=Li |first8=C. |year=2023 |title=A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution |journal=Scientific Reports |volume=13 |issue=1 |at=16 |doi=10.1038/s41598-022-24930-y |pmid=36604433 |bibcode=2023NatSR..13...16X | doi-access = free |issn=2045-2322|pmc=9816097 }}</ref>
{{clade
|{{clade
|1=[[Placodontia]]
|2=''[[Hanosaurus]]''
|label3=[[Eosauropterygia]]
|3={{clade
|label1=[[Pachypleurosauroidea]]
|1={{clade
|1={{clade
|1=''[[Majiashanosaurus]]''
|2={{clade
|1=''[[Diandongosaurus]]''
|2=''[[Dianmeisaurus]]'' }} }}
|3={{clade
|1={{clade
|1=''[[Dawazisaurus]]''
|2={{clade
|1=''[[Panzhousaurus]]''
|2={{clade
|label1=[[Keichousauridae]]
|label3=[[Pachypleurosauridae]]
|1={{clade
|1=''[[Dianopachysaurus]]''
|2=''[[Keichousaurus]]'' }}
|3={{clade
|1={{clade
|1=''[[Dactylosaurus]]''
|2={{clade
|1=''[[Anarosaurus]]''
|2=''[[Odoiporosaurus]]'' }} }}
|3={{clade
|1={{clade
|1=''[[Serpianosaurus]]''
|2=''[[Neusticosaurus]]'' }}
|3={{clade
|1=''[[Prosantosaurus]]''
|2={{clade
|1=''[[Qianxisaurus]]''
|2={{clade
|1='''''Wumengosaurus'''''
|2={{clade
|1=''[[Luopingosaurus]]''
|2=''[[Honghesaurus]]'' }} }} }} }} }} }} }} }} }} }} }}
|label3=[[Eusauropterygia]]
|3={{clade
|1=[[Nothosauroidea]]
|2=[[Pistosauroidea]]
}} }} }}|label1=[[Sauropterygia]]}}


==References==
==References==
{{Reflist}}
{{Reflist}}
{{Portal|Paleontology}}
{{Sauropterygia|E.}}
{{Taxonbar|from=Q8039226}}


[[Category:Sauropterygia]]
[[Category:Fossil taxa described in 2008]]
[[Category:Prehistoric reptiles of Asia]]
[[Category:Monotypic prehistoric reptile genera]]
[[Category:Monotypic prehistoric reptile genera]]
[[Category:Sauropterygian genera]]
[[Category:Middle Triassic reptiles of Asia]]
[[Category:Reptiles of China]]
[[Category:Reptiles of China]]
[[Category:Aquatic reptiles]]
[[Category:Anisian life]]
[[Category:Anisian genus first appearances]]
[[Category:Guanling Formation]]



{{triassic-reptile-stub}}
{{triassic-reptile-stub}}

Latest revision as of 12:07, 23 February 2024

Wumengosaurus
Temporal range: Anisian, 247.2–242 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Clade: Eosauropterygia
Genus: Wumengosaurus
Jiang et al., 2008
Type species
Wumengosaurus delicatomandibularis
Jiang et al., 2008
Other species
  • W. rotundicarpus Qin et al. 2021

Wumengosaurus is an extinct aquatic reptile from the Middle Triassic (late Anisian stage) Guanling Formation of Guizhou, southwestern China. It was originally described as a basal eosauropterygian and usually is recovered as such by phylogenetic analyses,[1][2][3] although one phylogeny has placed it as the sister taxon to Ichthyosauromorpha while refraining from a formal re-positioning.[4] It was a relatively small reptile, measuring 95.5–130.5 cm (3.13–4.28 ft) in total body length.[1]

In 2021, Qin et al. described an additional specimen from Guizhou (Panzhou District) as a new species of Wumengosaurus, W. rotundicarpus.[5]

Classification

[edit]

In the 2023 description of Luopingosaurus, Xu et al. recovered Wumengosaurus as a derived pachypleurosaurid, as the sister taxon to the clade formed by Luopingosaurus and Honghesaurus. The results of their phylogenetic analyses are shown in the cladogram below:[6]

Sauropterygia

References

[edit]
  1. ^ a b Jiang, Da-Yong; Rieppel, Olivier; Motani, Ryosuke; Hao, Wei-Cheng; Sun, Yuan-Lin; Schmitz, Lars; Sun, Zuo-Yu (2008). "A New Middle Triassic Eosauropterygian (Reptilia, Sauropterygia) from Southwestern China". Journal of Vertebrate Paleontology. 28 (4): 1055–1062. Bibcode:2008JVPal..28.1055J. doi:10.1671/0272-4634-28.4.1055. S2CID 83909484.
  2. ^ Cheng, Y. N.; Wu, X. C.; Sato, T.; Shan, H. Y. (2012). "A new eosauropterygian (Diapsida, Sauropterygia) from the Triassic of China". Journal of Vertebrate Paleontology. 32 (6): 1335. Bibcode:2012JVPal..32.1335C. doi:10.1080/02724634.2012.695983. S2CID 85253142.
  3. ^ Da-Yong Jiang; Ryosuke Motani; Andrea Tintori; Olivier Rieppel; Guan-Bao Chen; Jian-Dong Huang; Rong Zhang; Zuo-Yu Sun & Cheng Ji (2014). "The Early Triassic eosauropterygian Majiashanosaurus discocoracoidis, gen. et sp. nov. (Reptilia, Sauropterygia), from Chaohu, Anhui Province, People's Republic of China". Journal of Vertebrate Paleontology. 34 (5): 1044–1052. Bibcode:2014JVPal..34.1044J. doi:10.1080/02724634.2014.846264. S2CID 129828376.
  4. ^ Chen, Xiao-hong; Motani, Ryosuke; Long, Chen; Jiang, Da-Yong; Rieppel, Olivier (2014). "The enigmatic marine reptile Nanchangosaurus from the Lower Triassic of Hubei, China and the phylogenetic affinities of Hupehsuchia". PLOS ONE. 9 (7): e102361. Bibcode:2014PLoSO...9j2361C. doi:10.1371/journal.pone.0102361. PMC 4094528. PMID 25014493.
  5. ^ Qin, Yanjiao; He, Xiao; Luo, Yongming; Hu, Xinrui; Jiang, Liangbing; Deng, Xiaojie; Shi, Zhenhua; Ran, Weiyu (2021). "A New Species of Wumengosaurus from Panxian Fauna in Middle Triassic of Guizhou Province". Guizhou Geology (in Literary Chinese). 38 (4): 373–381. ISSN 1000-5943.
  6. ^ Xu, G.-H.; Shang, Q.-H.; Wang, W.; Ren, Y.; Lei, H.; Liao, J.-L.; Zhao, L.-J.; Li, C. (2023). "A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution". Scientific Reports. 13 (1). 16. Bibcode:2023NatSR..13...16X. doi:10.1038/s41598-022-24930-y. ISSN 2045-2322. PMC 9816097. PMID 36604433.