Project 3782: A. P. Cossette, C. A. Brochu. 2020. A systematic review of the giant alligatoroid Deinosuchus from the Campanian of North America and its implications for the relationships at the root of Crocodylia. Journal of Vertebrate Paleontology. epub ahead of print:e1767638.
Specimen: † Deinosuchus hatcheri (unvouchered)
View: skeleton reconstruction

Abstract

Deinosuchus is a lineage of giant (≥10 m) Late Cretaceous crocodylians from North America. These were the largest semiaquatic predators in their environments and are known to have fed on large vertebrates, including contemporaneous terrestrial vertebrates such as dinosaurs. Fossils have been found in units of Campanian age from northern Mexico to Montana in the west and Mississippi to New Jersey in the east. Three species have been named, and recent consensus suggests that they represent a single, widely ranging species. The authors studied newly collected material from western Texas and increased sampling from throughout North America to review species-level systematics of Deinosuchus and help refine its phylogenetic placement among crocodylians. Deinosuchus from eastern and western North America can be consistently differentiated and represent different species. A phylogenetic study is conducted including new character states. This work reinforces the identity of the ‘terror crocodile’ as an alligatoroid. Reference to the holotypes indicates that the generic name holder, Deinosuchus hatcheri, is extremely incomplete. As a result, the three known species of Deinosuchus cannot be differentiated. To ensure nomenclatural stability, the type species for Deinosuchus should be transferred to Deinosuchus riograndensis, a species known from multiple mostly complete individuals. Additionally, Deinosuchus rugosus is based on a holotype that is not diagnostic, and a new species, Deinosuchus schwimmeri, is named to encompass some specimens formerly assigned to D. rugosus.


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Article DOI: 10.1080/02724634.2020.1767638

Project DOI: 10.7934/P3782, http://dx.doi.org/10.7934/P3782
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 3 Documents
  • 83 Taxa
  • 1 Specimen
  • 163 Characters
Total size of project's media files: 4.75M

Download Project SDD File
Total scored cells: 8953
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 163
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 403
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:163/0
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MorphoBank Project 3782
  • Creation Date:
    11 August 2020
  • Publication Date:
    26 August 2020
  • Project views: 524

    Authors' Institutions

    • University of Iowa

    • New York Institute of Technology



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    Last logged in 08/26/20
    1110000
    (0, 0, 0)
    000
    Christopher Brochu
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000
    Adam Cossette
    Full membership
    Last logged in Never
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M27070' (83 Taxa)

    taxon unscored
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    [1] † Bernissartia fagesii
    Last Modified in 11/04/20
    73909000003
    [2] † Borealosuchus sternbergii
    Last Modified in 11/04/20
    2114214200003
    [3] † Borealosuchus threeensis
    Last Modified in 11/04/20
    139242400003
    [4] † Borealosuchus formidabilis
    Last Modified in 11/04/20
    2513813800003
    [5] † Borealosuchus wilsoni
    Last Modified in 11/04/20
    5211111100003
    [6] † Borealosuchus acutidentatus
    Last Modified in 11/04/20
    108555500003
    [7] † Pristichampsus vorax
    Last Modified in 11/04/20
    5011311300003
    [8] † Pristichampsus geiseltalensis
    Last Modified in 11/04/20
    80838300003
    [9] † Planocrania hengdongensis
    Last Modified in 11/04/20
    118464500003
    [10] † Planocrania datangensis
    Last Modified in 11/04/20
    122414100003
    [11] † Eothoracosaurus mississippiensis
    Last Modified in 11/04/20
    83808000003
    [12] † Thoracosaurus neocesariensis
    Last Modified in 11/04/20
    6110210200003
    [13] † Thoracosaurus macrorhynchus
    Last Modified in 11/04/20
    5910410400003
    [14] † Eosuchus minor
    Last Modified in 11/04/20
    5011311300003
    [15] † Eosuchus lerichei
    Last Modified in 11/04/20
    87767600003
    [16] † Eogavialis africanus
    Last Modified in 11/04/20
    5910410400003
    [17] Gavialis gangeticus
    Last Modified in 11/04/20
    116216200003
    [18] † Leidyosuchus canadensis
    Last Modified in 11/04/20
    3712612600003
    [19] † Deinosuchus hatcheri
    Last Modified in 11/04/20
    1567700003
    [20] † Deinosuchus riograndensis
    Last Modified in 11/04/20
    82818100003
    [21] † Deinosuchus schwimmeri
    Last Modified in 11/04/20
    89747400003
    [22] † Diplocynodon ratelii
    Last Modified in 11/04/20
    3812512500003
    [23] † Diplocynodon hantoniensis
    Last Modified in 11/04/20
    2813513500003
    [24] † Diplocynodon muelleri
    Last Modified in 11/04/20
    68959500003
    [25] † Diplocynodon monsvialensis
    Last Modified in 11/04/20
    90737300003
    [26] † Diplocynodon tormis
    Last Modified in 11/04/20
    73909000003
    [27] † Diplocynodon darwini
    Last Modified in 11/04/20
    3013313300003
    [28] † Diplocynodon remensis
    Last Modified in 11/04/20
    70939300003
    [29] † Diplocynodon deponiae
    Last Modified in 11/04/20
    83808000003
    [30] † Stangerochampsa mccabei
    Last Modified in 11/04/20
    3912412400003
    [31] † Albertochampsa langstoni
    Last Modified in 11/04/20
    104595900003
    [32] † Brachychampsa montana
    Last Modified in 11/04/20
    2813513500003
    [33] † Brachychampsa sealeyi
    Last Modified in 11/04/20
    107565600003
    [34] Alligator sinensis
    Last Modified in 11/04/20
    415915900003
    [35] Alligator mississippiensis
    Last Modified in 11/04/20
    016416300003
    [36] † Alligator mefferdi
    Last Modified in 11/04/20
    5510810800003
    [37] † Alligator thomsoni
    Last Modified in 11/04/20
    69949400003
    [38] † Alligator olseni
    Last Modified in 11/04/20
    5510810800003
    [39] † Alligator mcgrewi
    Last Modified in 11/04/20
    2713613600003
    [40] † Alligator prenasalis
    Last Modified in 11/04/20
    2813513500003
    [41] † Ceratosuchus burdoshi
    Last Modified in 11/04/20
    108555500003
    [42] † Hassiacosuchus haupti
    Last Modified in 11/04/20
    82818100003
    [43] † Allognathosuchus polyodon
    Last Modified in 11/04/20
    104595900003
    [44] † Navajosuchus mooki
    Last Modified in 11/04/20
    69949400003
    [45] † Wannaganosuchus brachymanus
    Last Modified in 11/04/20
    76878700003
    [46] † Procaimanoidea kayi
    Last Modified in 11/04/20
    6010310300003
    [47] † Procaimanoidea utahensis
    Last Modified in 11/04/20
    74898900003
    [48] † Arambourgia gaudryi
    Last Modified in 11/04/20
    93707000003
    [49] † Necrosuchus ionensis
    Last Modified in 11/04/20
    137262600003
    [50] † Tsoabichi greenriverensis
    Last Modified in 11/04/20
    117464600003
    [51] † Eocaiman cavernensis
    Last Modified in 11/04/20
    137262600003
    [52] † Purussaurus neivensis
    Last Modified in 11/04/20
    4711611600003
    [53] † Mourasuchus atopus
    Last Modified in 11/04/20
    5610710700003
    [54] Caiman yacare
    Last Modified in 11/04/20
    016316300003
    [55] Caiman crocodilus
    Last Modified in 11/04/20
    016516300003
    [56] Caiman latirostris
    Last Modified in 11/04/20
    615715700003
    [57] † Caiman lutescens
    Last Modified in 11/04/20
    114494900003
    [58] † Melanosuchus fisheri
    Last Modified in 11/04/20
    113505000003
    [59] Melanosuchus niger
    Last Modified in 11/04/20
    415915900003
    [60] Paleosuchus trigonatus
    Last Modified in 11/04/20
    216116100003
    [61] Paleosuchus palpebrosus
    Last Modified in 11/04/20
    515815800003
    [62] † Culebrasuchus mesoamericanus
    Last Modified in 11/04/20
    147161600003
    [63] † Centenariosuchus gilmorei
    Last Modified in 11/04/20
    118454500003
    [64] Mecistops cataphractus
    Last Modified in 11/04/20
    415915900003
    [65] Crocodylus niloticus
    Last Modified in 11/04/20
    016416300003
    [66] Crocodylus rhombifer
    Last Modified in 11/04/20
    116316200003
    [67] Crocodylus acutus
    Last Modified in 11/04/20
    116316200003
    [68] Crocodylus moreletii
    Last Modified in 11/04/20
    116316200003
    [69] Crocodylus intermedius
    Last Modified in 11/04/20
    116316200003
    [70] Crocodylus palustris
    Last Modified in 11/04/20
    116316200003
    [71] Crocodylus siamensis
    Last Modified in 11/04/20
    116316200003
    [72] Crocodylus porosus
    Last Modified in 11/04/20
    116316200003
    [73] Crocodylus novaeguineae
    Last Modified in 11/04/20
    116316200003
    [74] Crocodylus raninus
    Last Modified in 11/04/20
    73909000003
    [75] Crocodylus mindorensis
    Last Modified in 11/04/20
    116316200003
    [76] Crocodylus johnstoni
    Last Modified in 11/04/20
    116316200003
    [77] † Crocodylus palaeindicus
    Last Modified in 11/04/20
    5410910900003
    [78] Osteolaemus tetraspis
    Last Modified in 11/04/20
    415915900003
    [79] Osteolaemus osborni
    Last Modified in 11/04/20
    415915900003
    [80] † Euthecodon brumpti
    Last Modified in 11/04/20
    6310010000003
    [81] † Euthecodon arambourgii
    Last Modified in 11/04/20
    93707000003
    [82] Tomistoma schlegelii
    Last Modified in 11/04/20
    216116100003
    [83] † Tomistoma lusitanica
    Last Modified in 11/04/20
    67969600003


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views524
    Project overview86
    Media views149Media search (126 views); M693247 (23 views);
    Documents list44
    Taxon list74
    Specimen list70
    Views for media list46
    Bibliography28
    Matrix views27Morphological matrix from Cossette & Brochu 2020 (prepared by MorphoBank curators from original submission) (15 views); Matrix landing page (12 views);




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project15
    Project downloads12
    Document downloads3Cossette Deinosuchus characters and states - DOCX format (2 downloads); Cossette Deinosuchus matrix - NEXUS format (1 download);