A new pachypleurosaur (Reptilia: Sauropterygia) from the lower Middle Triassic of southwestern China and the phylogenetic relationships of Chinese pachypleurosaurs

Liu, Jun, Rieppel, Olivier, Jiang, Da-Yong, Aitchison, Jonathan C., Motani, Ryosuke, Zhang, Qi-Yue, Zhou, Chang-Yong and Sun, Yuan-Yuan (2011) A new pachypleurosaur (Reptilia: Sauropterygia) from the lower Middle Triassic of southwestern China and the phylogenetic relationships of Chinese pachypleurosaurs. Journal of Vertebrate Paleontology, 31 2: 292-302. doi:10.1080/02724634.2011.550363


Author Liu, Jun
Rieppel, Olivier
Jiang, Da-Yong
Aitchison, Jonathan C.
Motani, Ryosuke
Zhang, Qi-Yue
Zhou, Chang-Yong
Sun, Yuan-Yuan
Title A new pachypleurosaur (Reptilia: Sauropterygia) from the lower Middle Triassic of southwestern China and the phylogenetic relationships of Chinese pachypleurosaurs
Journal name Journal of Vertebrate Paleontology   Check publisher's open access policy
ISSN 0272-4634
1937-2809
Publication date 2011-01-01
Year available 2011
Sub-type Article (original research)
DOI 10.1080/02724634.2011.550363
Open Access Status Not yet assessed
Volume 31
Issue 2
Start page 292
End page 302
Total pages 11
Place of publication New York, NY, United States
Publisher Taylor & Francis
Language eng
Formatted abstract
A new genus and species of Pachypleurosauria, Dianopachysaurus dingi, gen. et sp. nov., from a recently discovered Middle Triassic Lagerstatte in the Anisian Guanling Formation of Yunnan Province is described. The monophyly of Pachypleurosauria, including all potential Chinese pachypleurosaurs in this study, is supported by the rigorous cladistic analysis conducted here. Phylogenetic relationships of Chinese pachypleurosaurs are clarified. Wumengosaurus occupies the most basal position within Pachypleurosauria. Keichousaurus and Dianopachysaurus form the monophyletic Keichousauridae that is the sister group of all European pachypleurosaurs. Our cladistic analysis also supports a previously proposed paleobiogeographic hypothesis of an eastern Tethyan origin of pachypleurosaurs and their migration into the western Tethyan faunal province. The existence of a long ghost lineage as required by the paleobiogeographic hypothesis is greatly shortened by the discovery of Dianopachysaurus.
Keyword Paleontology
Paleontology
PALEONTOLOGY
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 40920124002
NCET-07-0015
1212010610211
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Geography, Planning and Environmental Management Publications
 
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Created: Wed, 29 Jul 2015, 20:31:15 EST by Helen Smith on behalf of School of Geography, Planning & Env Management