Project 4553: T. Massonne, F. J. Augustin, A. T. Matzke, E. Weber, M. Böhme. 2021. A new species of Maomingosuchus from the Eocene of the Na Duong Basin (northern Vietnam) sheds new light on the phylogenetic relationship of tomistomine crocodylians and their dispersal from Europe to Asia. Journal of Systematic Palaeontology. 19 (22):1551-1585.
Specimen: † Stangerochampsa mccabei (unvouchered)
View: skeleton

Abstract

Maomingosuchus acutirostris sp. nov. is a new tomistomine crocodile from the middle–upper Eocene deposits (late Bartonian–Priabonian age, 39–35 Ma) of the Na Duong Basin in northern Vietnam. M. acutirostris can be differentiated from the type species Maomingosuchus petrolicus by having an acute anterior tip of the premaxilla. Both species differ from another Maomingosuchus from Krabi (Thailand) by differences in the surangular–dentary suture and maxillary alveoli. According to our phylogenetic results, M. acutirostris seems to be the sister species to the group M. petrolicus + Krabi-Maomingosuchus. The close relationship between those three tomistomines is supported in the present phylogenetic analysis by three synapomorphies. In our phylogenetic analysis, Maomingosuchus was retrieved in a basal position forming the sister group to Paratomistoma + Gavialosuchus + Melitosaurus + Tomistoma, including the extant Tomistoma schlegelii. This phylogeny indicates three different dispersal events of Tomistominae from Europe towards eastern Asia: 1) for the stem lineage of Maomingosuchus, no later than the late Eocene; 2) for the stem lineage of Penghusuchus pani + Toyotamaphimeia machikanensis, no later than the early–middle Miocene; and (3) for the stem lineage of T. schlegelii, during the Neogene.


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Article DOI: 10.1080/14772019.2022.2054372

Project DOI: 10.7934/P4553, http://dx.doi.org/10.7934/P4553
This project containsMatrices
  • 12 Media
  • 1 Matrix
  • 72 Taxa
  • 10 Specimens
  • 244 Characters
Total size of project's media files: 4.99M

Download Project SDD File
Total scored cells: 10870
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 244
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 585
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:209/35
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MorphoBank Project 4553

    Authors' Institutions

    • Universitaet Tuebingen (Eberhard-Karls-Universitaet)

    • Senckenberg Centre for Human Evolution and Palaeoenvironment (SHEP)



    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    7210122440010870
    (10870, 0, 0)
    000
    Tobias Massonne
    Full membership
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    Taxonomic Overview for Matrix 'M29141' (72 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
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    "-" cellscell images labels on
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    [1] † Bernissartia fagesii
    Last Modified in 02/03/23
    7916516500002
    [2] † Iharkutosuchus makadii
    Last Modified in 02/03/23
    11612812800002
    [3] † Hylaeochampsa vectiana
    Last Modified in 02/03/23
    14210210200002
    [4] † Allodaposuchus precedens
    Last Modified in 02/03/23
    13111311300002
    [5] † Thoracosaurus macrorhynchus
    Last Modified in 02/03/23
    7716716700002
    [6] † Thoracosaurus neocesariensis
    Last Modified in 02/03/23
    9315115100002
    [7] † Eothoracosaurus mississippiensis
    Last Modified in 02/03/23
    10513913900002
    [8] † Ocepesuchus eoafricanus
    Last Modified in 02/03/23
    200444400002
    [9] † Eosuchus minor
    Last Modified in 02/03/23
    7217217200002
    [10] † Eosuchus lerichei
    Last Modified in 02/03/23
    9914514500002
    [11] † Argochampsa krebsi
    Last Modified in 02/03/23
    11213313200002
    [12] † Eogavialis africanum
    Last Modified in 02/03/23
    7017417400002
    [13] † Aktiogavialis puertoricensis
    Last Modified in 02/03/23
    207373700002
    [14] † Siquisiquesuchus venezuelensis
    Last Modified in 02/03/23
    153919100002
    [15] † Gryposuchus colombianus
    Last Modified in 02/03/23
    6218318200002
    [16] † Ikanogavialis gameroi
    Last Modified in 02/03/23
    13411011000002
    [17] † Piscogavialis jugaliperforatus
    Last Modified in 02/03/23
    10014514400002
    [18] Siwalik gavialis
    Last Modified in 02/03/23
    10913513500002
    [19] Gavialis gangeticus
    Last Modified in 02/03/23
    124324300002
    [20] † Borealosuchus formidabilis
    Last Modified in 02/03/23
    2921521500002
    [21] † Borealosuchus wilsoni
    Last Modified in 02/03/23
    9914514500002
    [22] † Borealosuchus sternbergii
    Last Modified in 02/03/23
    3620820800002
    [23] † Leidyosuchus canadensis
    Last Modified in 02/03/23
    6517917900002
    [24] Diplocynodon darwini
    Last Modified in 02/03/23
    5518918900002
    [25] † Stangerochampsa mccabei
    Last Modified in 02/03/23
    5818618600002
    [26] † Brachychampsa montana
    Last Modified in 02/03/23
    3321121100002
    [27] Alligator mississippiensis
    Last Modified in 02/03/23
    024424400002
    [28] Caiman crocodilus
    Last Modified in 02/03/23
    024724400002
    [29] † Boverisuchus vorax
    Last Modified in 02/03/23
    6118318300002
    [30] † Planocrania datangensis
    Last Modified in 02/03/23
    166787800002
    [31] † Planocrania hengdongensis
    Last Modified in 02/03/23
    163828100002
    [32] † Asiatosuchus germanicus
    Last Modified in 02/03/23
    8316116100002
    [33] † Prodiplocynodon langi
    Last Modified in 02/03/23
    12112312300002
    [34] † Crocodylus depressifrons
    Last Modified in 02/03/23
    6218218200002
    [35] † Crocodylus affinis
    Last Modified in 02/03/23
    2821621600002
    [36] † Crocodylus acer
    Last Modified in 02/03/23
    11313113100002
    [37] † Brachyuranochampsa eversolei
    Last Modified in 02/03/23
    12112312300002
    [38] † Crocodylus megarhinus
    Last Modified in 02/03/23
    9514914900002
    [39] † Harpacochampsa camfieldensis
    Last Modified in 02/03/23
    159858500002
    [40] † Australosuchus clarkae
    Last Modified in 02/03/23
    9115315300002
    [41] † Kambara implexidens
    Last Modified in 02/03/23
    6717717700002
    [42] Mecistops cataphractus
    Last Modified in 02/03/23
    324124100002
    [43] † Crocodylus niloticus
    Last Modified in 02/03/23
    024424400002
    [44] † Crocodylus porosus
    Last Modified in 02/03/23
    024424400002
    [45] † Crocodylus rhombifer
    Last Modified in 02/03/23
    224224200002
    [46] † Crocodylus palaeindicus
    Last Modified in 02/03/23
    8316116100002
    [47] † Osteolaemus tetraspis
    Last Modified in 02/03/23
    424024000002
    [48] † Voay robustus
    Last Modified in 02/03/23
    4619819800002
    [49] † Rimasuchus lloydi
    Last Modified in 02/03/23
    12012412400002
    [50] † Euthecodon arambourgi
    Last Modified in 02/03/23
    12412012000002
    [51] † Euthecodon brumpti
    Last Modified in 02/03/23
    8416016000002
    [52] † Maroccosuchus zennaroi
    Last Modified in 02/03/23
    8016516400002
    [53] † Kentisuchus spenceri
    Last Modified in 02/03/23
    10414014000002
    [54] † Kentisuchus astrei
    Last Modified in 02/03/23
    203434100002
    [55] † Megadontosuchus arduini
    Last Modified in 02/03/23
    166797800002
    [56] † Dollosuchoides densmorei
    Last Modified in 02/03/23
    8416016000002
    [57] † Toyotamaphimeia machikanensis
    Last Modified in 02/03/23
    6418018000002
    [58] † Penghusuchus pani
    Last Modified in 02/03/23
    8515915900002
    [59] † Thecachampsa antiqua
    Last Modified in 02/03/23
    5518918900002
    [60] † Thecachampsa carolinensis
    Last Modified in 02/03/23
    9215215200002
    [61] Tomistoma cairense
    Last Modified in 02/03/23
    13211211200002
    [62] † Paratomistoma courtii
    Last Modified in 02/03/23
    173717100002
    [63] † Tomistoma coppensi
    Last Modified in 02/03/23
    14110510300002
    [64] Tomistoma schlegelii
    Last Modified in 02/03/23
    024424400002
    [65] † Tomistoma lusitanica
    Last Modified in 02/03/23
    8516315900002
    [66] † Gavialosuchus eggenburgensis
    Last Modified in 02/03/23
    14210210200002
    [67] † Tomistoma calaritanum
    Last Modified in 02/03/23
    149959500002
    [68] † Tomistoma gaudense
    Last Modified in 02/03/23
    163828100002
    [69] † Melitosaurus champsoides
    Last Modified in 02/03/23
    219252500002
    [70] † Maomingosuchus sp
    Last Modified in 02/03/23
    179686500002
    [71] † Maomingosuchus petrolica
    Last Modified in 02/03/23
    4320520100002
    [72] † Maomingosuchus acutirostris
    Last Modified in 02/03/23
    13211311200002


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