Project 4775: R. S. Thompson, J. C. Parish, S. C. Maidment, P. M. Barrett. 2012. Phylogeny of the ankylosaurian dinosaurs (Ornithischia: Thyreophora). Journal of Systematic Palaeontology. 10 (2):301-312.
Specimen: † Stegosaurus (unvouchered)
View: dorsal scutes

Abstract

Ankylosauria is a diverse clade of quadrupedal ornithischian dinosaurs whose remains are known from Middle Jurassic to latest Cretaceous sediments worldwide. Despite a long history of research, ankylosaur interrelationships remain poorly resolved and existing cladistic analyses suffer from limited character and taxon sampling. Here, we present the most comprehensive phylogenetic analysis of the group attempted to date. The traditional ankylosaurid–nodosaurid dichotomy is maintained. Ankylosauridae forms a well-resolved clade, which includes Zhongyuansaurus, the first ankylosaurid known to lack a tail club. Nodosauridae includes a number of taxa that were resolved either as ‘polacanthids’ or basal ankylosaurids in previous analyses. The use of a broader character sample allows analysis of the interrelationships of all valid ankylosaur species; this has revealed several previously unrecognized relationships. Stegosauria is recovered as the sister taxon to Ankylosauria, while Scelidosaurus is found to be a basal thyreophoran. Dedicated methods for coding continuous characters could be used in future to improve the resolution of ankylosaur phylogeny, particularly in order to explore the relationships within the poorly resolved nodosaurid clade.


Read the article »

Article DOI: 10.1080/14772019.2011.569091

Project DOI: 10.7934/P4775, http://dx.doi.org/10.7934/P4775
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 51 Taxa
  • 1 Specimen
  • 170 Characters
Total size of project's media files: 13.7M

Download Project SDD File
Total scored cells: 4260
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 170
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 352
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:170/0
Currently Viewing:
MorphoBank Project 4775
  • Creation Date:
    25 July 2023
  • Publication Date:
    01 August 2023
  • Project views: 2318

    Authors' Institutions

    • Natural History Museum, London

    • University of Oxford



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Shreya Jariwala
    Project Administrator
    5111170004260
    (4260, 0, 0)
    000


    Taxonomic Overview for Matrix 'M29383' (51 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Lesothosaurus diagnotsicus
    Last Modified in 07/25/23
    1915115100001
    [2] † Emausaurus
    Last Modified in 07/25/23
    103676700001
    [3] † Scutellosaurus
    Last Modified in 07/25/23
    89818100001
    [4] † Scelidosaurus
    Last Modified in 07/25/23
    2714314300001
    [5] † Huayangosaurus tabaii
    Last Modified in 07/25/23
    3113913900001
    [6] † Stegosaurus
    Last Modified in 07/25/23
    1515515500001
    [7] † Anoplosaurus curtonotus
    Last Modified in 07/25/23
    152181800001
    [8] † Animantarx ramaljonsei
    Last Modified in 07/25/23
    6710310300001
    [9] † Ankylosaurus marginoventris
    Last Modified in 07/25/23
    3014014000001
    [10] † Antarctopelta oliveroi
    Last Modified in 07/25/23
    154161600001
    [11] † Cedarpelta bilbeyhallorum
    Last Modified in 07/25/23
    87838300001
    [12] † Chrichtonsaurus benxiensis
    Last Modified in 07/25/23
    6210810800001
    [13] † Edmontonia
    Last Modified in 07/25/23
    1815215200001
    [14] † Euoplocephalus tutus
    Last Modified in 07/25/23
    416616600001
    [15] † Gargoyleosaurus parkpinorum
    Last Modified in 07/25/23
    6310710700001
    [16] † Gastonia burgei
    Last Modified in 07/25/23
    3313713700001
    [17] † Gobisaurus domoculus
    Last Modified in 07/25/23
    101696900001
    [18] † Hoplitosaurus marshi
    Last Modified in 07/25/23
    145252500001
    [19] † Hungarosaurus tormai
    Last Modified in 07/25/23
    74979600001
    [20] † Hylaeosaurus armatus
    Last Modified in 07/25/23
    132383800001
    [21] † Liaoningosaurus paradoxus
    Last Modified in 07/25/23
    121494900001
    [22] † Minmi paravertebra
    Last Modified in 07/25/23
    5012212000001
    [23] † Minotaurasaurus ramachandrani
    Last Modified in 07/25/23
    94767600001
    [24] † Mymoorapelta maysi
    Last Modified in 07/25/23
    117535300001
    [25] † Niobrarasaurus coleii
    Last Modified in 07/25/23
    113575700001
    [26] † Nodocephalosaurus kirtlandensis
    Last Modified in 07/25/23
    146242400001
    [27] † Nodosaurus textillis
    Last Modified in 07/25/23
    135353500001
    [28] † Panoplosaurus mirus
    Last Modified in 07/25/23
    4013113000001
    [29] † Pawpawsaurus cambelli
    Last Modified in 07/25/23
    94767600001
    [30] † Peloroplites cedrimontanus
    Last Modified in 07/25/23
    82888800001
    [31] † Pinacosaurus grangeri
    Last Modified in 07/25/23
    1815215200001
    [32] † Pinacosaurus mephistocephalus
    Last Modified in 07/25/23
    101696900001
    [33] † Polacanthus foxii
    Last Modified in 07/25/23
    105656500001
    [34] † Polacanthus rudgwickensis
    Last Modified in 07/25/23
    1628800001
    [35] † Saichania chulsanensis
    Last Modified in 07/25/23
    3913113100001
    [36] † Sauropelta edwardsi
    Last Modified in 07/25/23
    3313713700001
    [37] † Shamosaurus scutatus
    Last Modified in 07/25/23
    6510510500001
    [38] † Shanxia tianzhenensis
    Last Modified in 07/25/23
    132383800001
    [39] † Silvisaurus condrayi
    Last Modified in 07/25/23
    6610410400001
    [40] † Stegopelta landerensis
    Last Modified in 07/25/23
    152191800001
    [41] † Struthiosaurus austriacus
    Last Modified in 07/25/23
    6810210200001
    [42] † Struthiosaurus languedocensis
    Last Modified in 07/25/23
    144262600001
    [43] † Talarurus plicatospineus
    Last Modified in 07/25/23
    6910110100001
    [44] † Tarchia gigantea
    Last Modified in 07/25/23
    5911111100001
    [45] † Tatankocephalus cooneyorum
    Last Modified in 07/25/23
    128424200001
    [46] † Texasetes pleurohalio
    Last Modified in 07/25/23
    137333300001
    [47] † Tianzhenosaurus youngi
    Last Modified in 07/25/23
    4212812800001
    [48] † Tsagantegia longicranialis
    Last Modified in 07/25/23
    102686800001
    [49] † Zhejiangosaurus lishuiensis
    Last Modified in 07/25/23
    135353500001
    [50] † Zhonguansaurus lauyangensis
    Last Modified in 07/25/23
    120505000001
    [51] † Dyoplosaurus acutosquameus
    Last Modified in 07/25/23
    140303000001


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views2318
    Documents list114
    Project overview171
    Views for media list140
    Media views465Media search (389 views); M890417 (76 views);
    Matrix views117Matrix landing page (111 views); Thompson et al 2012 (6 views);
    Bibliography92
    Specimen list241
    Taxon list978