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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    "-" 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


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    Project overview1913
    Media views6099M99021 (754 views); Media search (3077 views); M99023 (451 views); M99022 (477 views); M99026 (469 views); M99024 (450 views); M99025 (421 views);
    Matrix views1652Matrix landing page (1358 views); Character-taxon matrix used for phylogenetic analysis. (294 views);
    Views for media list1913
    Specimen list1786
    Taxon list2168
    Bibliography585
    Documents list1185




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project238
    Matrix downloads40Character-taxon matrix used for phylogenetic analysis. (40 downloads);
    Project downloads198