Project 611: M. E. Burns, P. J. Currie, R. L. Sissons, V. M. Arbour. 2011. Juvenile specimens of Pinacosaurus grangeri Gilmore, 1933 (Ornithischia: Ankylosauria) from the Late Cretaceous of China, with comments on the specific taxonomy of Pinacosaurus. Cretaceous Research. 32 (2):174-186.
Specimen: P grangeri (IVPP:V16853)
View: Lateral

Abstract

Four juvenile specimens referable to Pinacosaurus grangeri (Ankylosauria: Dinosauria) are described from the Campanian (Upper Cretaceous) locality Bayan Mandahu in northern Inner Mongolia Autonomous Region (People’s Republic of China). All the specimens preserve the skulls as well as, in some cases, mandibles, postcrania, and osteoderm. They are not taphonomically deformed by expanding matrix distortion, unlike many Gobi specimens, including the holotype of P. grangeri. Bayan Mandahu is also the type locality for Pinacosaurus mephistocephalus. The proximity in space and time of these two closely related species warrants a generic and specific revision for Pinacosaurus. The distinction of the two species is based on characters of the squamosal dermal elaborations, cranial roof posterior to the orbits, premaxillary notch, and distal margin of the ilium. Although a relatively well-represented ankylosaur taxon, the phylogenetic position of Pinacosaurus has not been unequivocally resolved. A new analysis recovers Pinacosaurus as the most basal member of the Ankylosaurinae.


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Project DOI: 10.7934/P611, http://dx.doi.org/10.7934/P611
This project containsMatrices
  • 6 Media
  • 1 Matrix
  • 2 Documents
  • 23 Taxa
  • 1 Specimen
  • 66 Characters
Total size of project's media files: 1 MB

Download Project SDD File
Total scored cells: 1097
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 66
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 142
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:66/0
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MorphoBank Project 611


    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Michael Burns
    Project Administrator
    Last logged in 01/25/12
    230066001097
    (1097, 0, 0)
    000
    MorphoBank Curator
    Full membership
    Last logged in 03/26/12
    0160000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M1381' (23 Taxa)

    taxon unscored
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    scored
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    "-" cellscell images labels on
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    [1] scelidosaurus
    Last Modified in 12/05/13
    25414100002
    [2] huayangosaurus
    Last Modified in 12/05/13
    12545400002
    [3] gargoyleosaurus
    Last Modified in 12/05/13
    21454500002
    [4] gastonia
    Last Modified in 12/05/13
    21454500002
    [5] gobisaurus
    Last Modified in 12/05/13
    24424200002
    [6] shamosaurus
    Last Modified in 12/05/13
    26404000002
    [7] tsagantegia
    Last Modified in 12/05/13
    29373700002
    [8] talarurus
    Last Modified in 12/05/13
    28383800002
    [9] minmi
    Last Modified in 12/05/13
    32343400002
    [10] P grangeri
    Last Modified in 12/05/13
    0666600002
    [11] P mephistocephalus
    Last Modified in 12/05/13
    8585800002
    [12] tarchia
    Last Modified in 12/05/13
    8585800002
    [13] saichania
    Last Modified in 12/05/13
    2646400002
    [14] tianzhenosaurus
    Last Modified in 12/05/13
    25414100002
    [15] nodocephalosaurus
    Last Modified in 12/05/13
    44222200002
    [16] ankylosaurus
    Last Modified in 12/05/13
    9575700002
    [17] euoplocephalus
    Last Modified in 12/05/13
    2646400002
    [18] pawpawsaurus
    Last Modified in 12/05/13
    23434300002
    [19] silvisaurus
    Last Modified in 12/05/13
    24424200002
    [20] sauropelta
    Last Modified in 12/05/13
    17494900002
    [21] panoplosaurus
    Last Modified in 12/05/13
    8585800002
    [22] E longiceps
    Last Modified in 12/05/13
    18484800002
    [23] E rugosidens
    Last Modified in 12/05/13
    15515100002


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views18346
    Project overview2088
    Matrix views1767Matrix landing page (1466 views); Character-taxon matrix used for phylogenetic analysis. (301 views);
    Media views6207Media search (3134 views); M99021 (757 views); M99023 (463 views); M99022 (485 views); M99026 (475 views); M99024 (460 views); M99025 (433 views);
    Views for media list2015
    Specimen list1865
    Taxon list2585
    Bibliography614
    Documents list1205




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project261
    Matrix downloads41Character-taxon matrix used for phylogenetic analysis. (41 downloads);
    Project downloads220