Project 2626: J. N. Choiniere, C. A. Forster, W. J. de Klerk. 2012. New information on Nqwebasaurus thwazi, a coelurosaurian theropod from the Early Cretaceous Kirkwood Formation in South Africa. Cretaceous Research. 71-72:1-17.
Specimen: † Allosaurus fragilis (unvouchered)
View: skeleton

Abstract

We performed additional preparation on the holotype skeleton of Nqwebasaurus thwazi and discovered new skeletal material. We describe this material, which includes a maxilla with small, conical, unserrated teeth and bones of the braincase, as well as parts of the holotype postcranial anatomy that were previously poorly documented. We incorporate this new anatomical information into a broadly sampled matrix designed to test theropod relationships. Our phylogenetic results hypothesize that Nqwebasaurus is the basalmost ornithomimosaur, and recover numerous characters supporting this relationship, including features of the maxilla, frontal, dentition, axial skeleton, forelimb and hindlimb. Nqwebasaurus is the first African ornithomimosaur and the first Gondwanan member of this group known from articulated skeletal material, supporting the hypothesis that coelurosaurian groups were cosmopolitan during their early evolutionary history. The presence of reduced dentition and a gastric mill in Nqwebasaurus strongly suggest that this taxon was herbivorous.


Read the article »

Article DOI: http://dx.doi.org/10.1016/j.jafrearsci.2012.05.005

Project DOI: 10.7934/P2626, http://dx.doi.org/10.7934/P2626
This project containsMatrices
  • 10 Media
  • 1 Matrix
  • 2 Documents
  • 97 Taxa
  • 11 Specimens
  • 568 Characters
Total size of project's media files: 8 MB

Download Project SDD File
Total scored cells: 25550
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 568
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 1290
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:510/58
Currently Viewing:
MorphoBank Project 2626


    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    Last logged in 02/23/17
    9711105680025550
    (24118, 0, 1432)
    000
    Jonah Choiniere
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000
    Catherine Forster
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M24524' (97 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Herrerasaurus ischigualastensis
    Last Modified in 02/23/17
    189353352026003
    [2] † Nqwebasaurus thwazi
    Last Modified in 02/23/17
    325229226014003
    [3] † Acrocanthosaurus atokensis
    Last Modified in 02/23/17
    25830330008003
    [4] † Afrovenator abakensis
    Last Modified in 02/23/17
    31524724607003
    [5] † Albertosaurus sarcophagus
    Last Modified in 02/23/17
    16040140107003
    [6] † Allosaurus fragilis
    Last Modified in 02/23/17
    45510501015003
    [7] † Alvarezsaurus calvoi
    Last Modified in 02/23/17
    44811110109003
    [8] † Alxasaurus elesitaiensis
    Last Modified in 02/23/17
    38617817704003
    [9] † Anserimimus planinychus
    Last Modified in 02/23/17
    46010310305003
    [10] † Apsaravis ukhaana
    Last Modified in 02/23/17
    345197197026003
    [11] † Archaeopteryx lithographica
    Last Modified in 02/23/17
    197349348022003
    [12] † Avimimus portentosus
    Last Modified in 02/23/17
    254301301013003
    [13] † Beipiaosaurus inexpectus
    Last Modified in 02/23/17
    44311611609003
    [14] † Beishanlong grandis
    Last Modified in 02/23/17
    46810010000003
    [15] † Buitreraptor gonzalezorum
    Last Modified in 02/23/17
    38317917906003
    [16] † Byronosaurus jaffeei
    Last Modified in 02/23/17
    395160159013003
    [17] † Carnotaurus sastrei
    Last Modified in 02/23/17
    221326325021003
    [18] † Caudipteryx zhoui
    Last Modified in 02/23/17
    304252247013003
    [19] † Ceratosaurus nasicornis
    Last Modified in 02/23/17
    168386385014003
    [20] † Chirostenotes pergracilis
    Last Modified in 02/23/17
    380175175013003
    [21] † Citipati osmolskae
    Last Modified in 02/23/17
    182337336049003
    [22] † Coelophysis bauri
    Last Modified in 02/23/17
    227323321019003
    [23] † Compsognathus longipes
    Last Modified in 02/23/17
    230322316016003
    [24] † Conchoraptor gracilis
    Last Modified in 02/23/17
    372179179017003
    [25] † Confuciusornis sanctus
    Last Modified in 02/23/17
    273246246049003
    [26] † Cryolophosaurus ellioti
    Last Modified in 02/23/17
    41415014706003
    [27] † Daspletosaurus torosus
    Last Modified in 02/23/17
    35820220108003
    [28] † Deinonychus antirrhopus
    Last Modified in 02/23/17
    134420420014003
    [29] † Dilong paradoxus
    Last Modified in 02/23/17
    228324321016003
    [30] † Dilophosaurus wetherilli
    Last Modified in 02/23/17
    206348345016003
    [31] † Dromaeosaurus albertensis
    Last Modified in 02/23/17
    399159159010003
    [32] † EK troodontid
    Last Modified in 02/23/17
    516505002003
    [33] † Eoraptor lunensis
    Last Modified in 02/23/17
    323222222023003
    [34] † Epidexipteryx hui
    Last Modified in 02/23/17
    38917117108003
    [35] † Erlikosaurus andrewsi
    Last Modified in 02/23/17
    367179178022003
    [36] † Eustreptospondylus oxiensis
    Last Modified in 02/23/17
    195357355017003
    [37] † Falcarius utahensis
    Last Modified in 02/23/17
    18537837606003
    [38] † Gallimimus bullatus
    Last Modified in 02/23/17
    192338338038003
    [39] † Garudimimus brevipes
    Last Modified in 02/23/17
    196326326046003
    [40] † Giganotosaurus carolinii
    Last Modified in 02/23/17
    37319319104003
    [41] † Gigantoraptor erlianensis
    Last Modified in 02/23/17
    4678686015003
    [42] † Gorgosaurus libratus
    Last Modified in 02/23/17
    30825525505003
    [43] † Guanlong wucaii
    Last Modified in 02/23/17
    68487476014003
    [44] † Haplocheirus sollers
    Last Modified in 02/23/17
    109444437016003
    [45] † Harpymimus okladnikovi
    Last Modified in 02/23/17
    226306305036003
    [46] † Huaxiagnathus orientalis
    Last Modified in 02/23/17
    313242242013003
    [47] † Incisivosaurus gauthieri
    Last Modified in 02/23/17
    348207207013003
    [48] † Limusaurus inextricabilis
    Last Modified in 02/23/17
    213301298056003
    [49] † Linheraptor exquisitus
    Last Modified in 02/23/17
    321236236011003
    [50] † Mahakala omnogovae
    Last Modified in 02/23/17
    478848306003
    [51] † Majungasaurus crenatissimus
    Last Modified in 02/23/17
    164392391012003
    [52] † Mapusaurus roseae
    Last Modified in 02/23/17
    38018618602003
    [53] † Masiakasaurus knopfleri
    Last Modified in 02/23/17
    385172167011003
    [54] † Megalosaurus bucklandii
    Last Modified in 02/23/17
    37618518408003
    [55] † Mei long
    Last Modified in 02/23/17
    242301301025003
    [56] † Microraptor gui
    Last Modified in 02/23/17
    330223223015003
    [57] † Microvenator celer
    Last Modified in 02/23/17
    38217917608003
    [58] † Monolophosaurus jiangi
    Last Modified in 02/23/17
    265291290012003
    [59] † Mononykus olecranus
    Last Modified in 02/23/17
    319228228021003
    [60] † Neovenator salerii
    Last Modified in 02/23/17
    26130330104003
    [61] † Nothronychus graffami
    Last Modified in 02/23/17
    38418018004003
    [62] † Ornitholestes hermanni
    Last Modified in 02/23/17
    224330325015003
    [63] † Ornithomimus edmontonicus
    Last Modified in 02/23/17
    264283283021003
    [64] † Oviraptor philoceratops
    Last Modified in 02/23/17
    433120120015003
    [65] † Parvicursor remotus
    Last Modified in 02/23/17
    439112109019003
    [66] † Patagonykus puertai
    Last Modified in 02/23/17
    40815514206003
    [67] † Pelecanimimus polyodon
    Last Modified in 02/23/17
    317237230014003
    [68] † Piatnitzkysaurus floresi
    Last Modified in 02/23/17
    39516916804003
    [69] † Proceratosaurus bradleyi
    Last Modified in 02/23/17
    41514714506003
    [70] † Rahonavis ostromi
    Last Modified in 02/23/17
    35021221206003
    [71] † Rinchenia mongoliensis
    Last Modified in 02/23/17
    453101101014003
    [72] † Sapeornis chaoyangensis
    Last Modified in 02/23/17
    259278278031003
    [73] † Saurornithoides mongoliensis
    Last Modified in 02/23/17
    40615515507003
    [74] † Saurornitholestes langstoni
    Last Modified in 02/23/17
    36320119604003
    [75] † Segnosaurus galboensis
    Last Modified in 02/23/17
    42414114103003
    [76] † Shenzhousaurus orientalis
    Last Modified in 02/23/17
    313225225030003
    [77] † Shuvuuia deserti
    Last Modified in 02/23/17
    78442438048003
    [78] † Sinornithoides youngi
    Last Modified in 02/23/17
    40315715708003
    [79] † Sinornithosaurus millenii
    Last Modified in 02/23/17
    323232232013003
    [80] † Sinosauropteryx prima
    Last Modified in 02/23/17
    262292292014003
    [81] † Sinovenator changii
    Last Modified in 02/23/17
    31624824804003
    [82] † Sinraptor dongi
    Last Modified in 02/23/17
    109445441014003
    [83] † Stokesosaurus langhami
    Last Modified in 02/23/17
    44512211801003
    [84] † Struthiomimus altus
    Last Modified in 02/23/17
    146376376046003
    [85] † Suchomimus tenerensis
    Last Modified in 02/23/17
    37518718508003
    [86] † Syntarsus rhodesiensis
    Last Modified in 02/23/17
    180371368018003
    [87] † Tanycolagreus topwilsoni
    Last Modified in 02/23/17
    32823723503003
    [88] † Tarbosaurus bataar
    Last Modified in 02/23/17
    36119919908003
    [89] † Tawa hallae
    Last Modified in 02/23/17
    284264264020003
    [90] † Torvosaurus tanneri
    Last Modified in 02/23/17
    34421521409003
    [91] † Troodon formosus
    Last Modified in 02/23/17
    269284281015003
    [92] † Tsaagan mangas
    Last Modified in 02/23/17
    350205205013003
    [93] † Tyrannosaurus rex
    Last Modified in 02/23/17
    32518516018003
    [94] † Unenlagia comahuensis
    Last Modified in 02/23/17
    44612011202003
    [95] † Velociraptor mongoliensis
    Last Modified in 02/23/17
    118431431019003
    [96] † Zanabazar junior
    Last Modified in 02/23/17
    378179179011003
    [97] † Zuolong salleei
    Last Modified in 02/23/17
    32124023707003


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views9294
    Project overview641
    Media views2889Media search (856 views); M437343 (225 views); M437346 (220 views); M437344 (229 views); M437348 (184 views); M437340 (190 views); M437342 (160 views); M437345 (162 views); M437347 (231 views); M437349 (207 views); M437341 (225 views);
    Matrix views517Matrix landing page (465 views); matrix (52 views);
    Taxon list2816
    Documents list318
    Bibliography197
    Specimen list1545
    Views for media list371




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project117
    Project downloads109
    Document downloads5Matrix (2 downloads); character names and states (3 downloads);
    Matrix downloads3matrix (3 downloads);