Project 3812: E. Cuesta, D. Vidal, F. Ortega, M. Shibata, JL Sanz. 2021. Pelecanimimus (Theropoda: Ornithomimosauria) postcranial anatomy and the evolution of the specialized manus in Ornithomimosaurs and sternum in maniraptoriforms. Zoological Journal of the Linnean Society. online:1-39.
Specimen: † Pelecanimimus polyodon Pérez-Moreno, 1994 (MCCM/LH:7777)
View: Postcranial squeleton 2D

Abstract

Pelecanimimus polyodon was discovered in 1993 in the Spanish Barremian fossil site of Las Hoyas, being the first ornithomimosaur described from Europe. So far, there has been no detailed description of the holotype of Pelecanimimus, which is composed of the anterior-half of an articulated skeleton. Here we report a new, detailed, revised and more accurate osteological description of its postcranial skeleton, comparing this new data to information about Ornithomimosauria from the last three decades. This osteological and phylogenetic analysis of Pelecanimimus shows several ornithomimosaur synapomorphies and a unique combination of characters that emend its original diagnosis. Pelecanimimus diverged early in Ornithomimosauria and reveals an enlargement trend of the manus, shared with derived ornithomimosaurians, due to a long metacarpal I and elongated distal phalanges. This evolutionary novelty, and other synapomorphies, has led to the definition of a new clade, Macrocheiriformes, including Pelecanimimus and more derived ornithomimosaurs. Pelecanimimus has the only ossified sternal plates among ornithomimosaurs and the first evidence of uncinate processes in a nonmaniraptoran theropod, indicating a convergent appearance of these structures in Coelurosauria. The character combination in an early-diverging ornithomimosaur like Pelecanimimus found in this analysis provides a key step in the evolution of the manus and pectoral girdle in Ornithomimosauria


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Article DOI: https://doi.org/10.1093/zoolinnean/zlab013

Project DOI: 10.7934/P3812, http://dx.doi.org/10.7934/P3812
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 98 Taxa
  • 1 Specimen
  • 568 Characters
Total size of project's media files: 5.35M

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Total scored cells: 24580
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: 1237
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Total character states with media with labels:0
Total unordered/ordered characters:558/10
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MorphoBank Project 3812

    Authors' Institutions

    • Fukui Prefectural Dinosaur Museum, Katsuyama, Fukui Prefecture

    • Fukui Prefectural University

    • Bayerische Staatssammlung fuer Palaeontologie und Geologie

    • Universidad Autonoma de Madrid

    • Universidad Nacional de Educación a Distancia (UNED), Madrid

    • Real Academia de Ciencias Exactas, Fisicas y Naturales



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    Elena Cuesta
    Project Administrator
    9811056805680024580
    (24580, 0, 0)
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    Taxonomic Overview for Matrix 'M26950' (98 Taxa)

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    [1] Herrerasaurus ischigualastensis
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    [2] Nqwebasaurus thwazi
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    [3] Acrocanthosaurus atokensis
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    26630330200001
    [4] Afrovenator abakensis
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    32224724600001
    [5] Albertosaurus sarcophagus
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    16740140100001
    [6] Allosaurus fragilis
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    6051050800001
    [7] Alvarezsaurus calvoi
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    45711111100001
    [8] Alxasaurus elesitaiensis
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    39017817800001
    [9] Anserimimus planinychus
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    46510310300001
    [10] Apsaravis ukhaana
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    [11] Archaeopteryx lithographica
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    [12] Avimimus portentosus
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    [13] Beipiaosaurus inexpectus
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    [14] Beishanlong grandis
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    46810010000001
    [15] Buitreraptor gonzalezorum
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    [16] Byronosaurus jaffeei
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    [17] Carnotaurus sastrei
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    [18] Caudipteryx zhoui
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    [19] Ceratosaurus nasicornis
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    [20] Chirostenotes pergracilis
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    [21] Citipati osmolskae
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    [22] Coelophysis bauri
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    [23] Compsognathus longipes
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    [24] Conchoraptor gracilis
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    [27] Daspletosaurus torosus
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    [28] Deinonychus antirrhopus
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    [29] Dilong paradoxus
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    [31] Dromaeosaurus albertensis
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    [32] EK troodontid
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    [38] Gallimimus bullatus
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    [39] Garudimimus brevipes
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    [40] Giganotosaurus carolinii
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    [41] Gigantoraptor erlianensis
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    [42] Gorgosaurus libratus
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    [43] Guanlong wucaii
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    [44] Haplocheirus sollers
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    [45] Harpymimus okladnikovi
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    [46] Huaxiagnathus orientalis
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    [47] Incisivosaurus gauthieri
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    36120720700001
    [48] Limusaurus inextricabilis
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    [49] Linheraptor exquisitus
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    [50] Mahakala omnogovae
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    [51] Majungasaurus crenatissimus
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    [52] Mapusaurus roseae
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    [53] Masiakasaurus knopfleri
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    [54] Megalosaurus bucklandii
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    [55] Mei long
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    [56] Microraptor gui
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    [57] Microvenator celer
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    [58] Monolophosaurus jiangi
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    [59] Mononykus olecranus
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    [60] Neovenator salerii
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    [61] Nothronychus graffami
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    [62] Ornitholestes hermanni
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    [63] Ornithomimus edmontonicus
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    [64] Oviraptor philoceratops
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    [65] Parvicursor remotus
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    [66] Patagonykus puertai
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    [67] † Pelecanimimus polyodon
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    [68] Piatnitzkysaurus floresi
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    [69] Proceratosaurus bradleyi
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    [72] Sapeornis chaoyangensis
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    [79] Sinornithosaurus millenii
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    [80] Sinosauropteryx prima
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    [81] Sinovenator changii
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    [82] Sinraptor dongi
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    [83] Stokesosaurus langhami
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    [84] Struthiomimus altus
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    [86] Syntarsus rhodesiensis
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    [87] Tanycolagreus topwilsoni
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    [88] Tarbosaurus bataar
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    [89] Tawa hallae
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    [90] Torvosaurus tanneri
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    [91] Troodon formosus
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    [92] Tsaagan mangas
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    [93] Tyrannosaurus rex
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    [94] Unenlagia comahuensis
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    [95] Velociraptor mongoliensis
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    [96] Zanabazar junior
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    [97] Zuolong salleei
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    32824024000001
    [98] Deinocheirus
    Last Modified in 09/28/20
    13243643600001


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    Matrix downloads6Pelecanimimus postcraneal modifications from Lee et al 2014 (6 downloads);