Project 506: J. Liu, O. Rieppel, D.-Y. Jiang, J. C. Aitchison, R. Motani, Q.-Y. Zhang, C.-Y. Zhou, Y.-Y. Sun. 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.
Specimen: † Dianopachysaurus dingi (LPV:31365)
View: Dorsal

Abstract

A new genus and species of Pachypleurosauria, Dianopachysaurus dingi, gen. et sp. nov., from a recently discovered Middle Triassic Lagerst├Ątte 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.


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Project DOI: 10.7934/P506, http://dx.doi.org/10.7934/P506
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 30 Taxa
  • 1 Specimen
  • 137 Characters
Total size of project's media files: 4.07M

Download Project SDD File
Total scored cells: 3781
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 137
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 315
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:137/0
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MorphoBank Project 506

    Authors' Institutions

    • Beijing University (Peking University)

    • University of Hong Kong

    • University of California Davis

    • Field Museum of Natural History

    • China Geological Survey



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    (scored, NPA, "-")
    cell
    medialabels
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    MorphoBank Curator
    Project Administrator
    Last logged in 05/13/12
    1110000
    (0, 0, 0)
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    Maureen Admin
    Full membership
    Last logged in 01/09/20
    2900137003781
    (3780, 0, 1)
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    Jun Liu
    Full membership
    Last logged in 06/09/11
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    Taxonomic Overview for Matrix 'M1211' (30 Taxa)

    taxon unscored
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    [1] Ancestor
    Last Modified in 12/05/13
    013713700003
    [2] Captorhinidae
    Last Modified in 12/05/13
    713113000003
    [3] Araeoscelidia
    Last Modified in 12/05/13
    313513400003
    [4] Claudiosaurus
    Last Modified in 12/05/13
    713013000003
    [5] Younginiformes
    Last Modified in 12/05/13
    314013400003
    [6] Rhynchosauria
    Last Modified in 12/05/13
    413513300003
    [7] Trilophosaurus
    Last Modified in 12/05/13
    1712112000003
    [8] Prolacertiformes
    Last Modified in 12/05/13
    414913300003
    [9] Choristodera
    Last Modified in 12/05/13
    613313100003
    [10] Archosauriformes
    Last Modified in 12/05/13
    216613500003
    [11] Kuehneosauridae
    Last Modified in 12/05/13
    2511211200003
    [12] Rhynchocephalia
    Last Modified in 12/05/13
    115113600003
    [13] Squamata
    Last Modified in 12/05/13
    315813400003
    [14] Testudines
    Last Modified in 12/05/13
    1014112700003
    [15] Placodus
    Last Modified in 12/05/13
    113813600003
    [16] Cyamodus
    Last Modified in 12/05/13
    3210810500003
    [17] Corosaurus
    Last Modified in 12/05/13
    912812800003
    [18] Cymatosaurus
    Last Modified in 12/05/13
    391039800003
    [19] Augustasaurus
    Last Modified in 12/05/13
    3510210200003
    [20] Pistosaurus
    Last Modified in 12/05/13
    48898900003
    [21] Plesiosaurus
    Last Modified in 12/05/13
    912912701003
    [22] Simosaurus
    Last Modified in 12/05/13
    013713700003
    [23] Germanosaurus
    Last Modified in 12/05/13
    84535300003
    [24] Nothosaurus
    Last Modified in 12/05/13
    015213700003
    [25] Lariosaurus
    Last Modified in 12/05/13
    1113212600003
    [26] Wumengosaurus
    Last Modified in 12/05/13
    53848400003
    [27] Serpiano-Neustico
    Last Modified in 12/05/13
    414313300003
    [28] Anaro-Dactylo
    Last Modified in 12/05/13
    2011711700003
    [29] Keichousaurus
    Last Modified in 12/05/13
    613513100003
    [30] † Dianopachysaurus dingi
    Last Modified in 12/05/13
    46919100003


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views23527
    Project overview2351
    Media views3575Media search (3081 views); M68346 (494 views);
    Views for media list1056
    Documents list1140
    Specimen list1754
    Matrix views1583Matrix landing page (1382 views); Liu et al. (201 views);
    Taxon list11320
    Bibliography748




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project213
    Document downloads1Matrix (1 download);
    Matrix downloads9Liu et al. (9 downloads);
    Project downloads203