Project 4602: A. M. Yates, J. Ristevski, S. W. Salisbury. 2023. The last Baru (Crocodylia, Mekosuchinae): a new species of ‘cleaver‐headed crocodile’ from central Australia and the turnover of crocodylians during the Late Miocene in Australia. Papers in Palaeontology. 9 (5):none yet.
Specimen: † Baru iylwenpeny Yates et al., 2023 (NTM /P:5335)
View: right dorsolateral view of skull

Abstract

Baru is a genus that includes several large mekosuchine crocodylians from the Oligo-Miocene of Australia. Here we describe Baru iylwenpeny sp. nov. from a large sample of cranial bones from the upper Miocene Alcoota Local Fauna of the Northern Territory. Baru iylwenpeny can be diagnosed by several autapomorpies that include, but are not limited to: extreme reduction of the pneumatic foramina associated with the diverticula that invade the bones of the suspensorium, and; enlargement of the postcaniniform maxillary teeth resulting in crowding of the postcaniniform alveoli and a reduction in the number of maxillary alveoli to 12. The new species is the geologically youngest known member of the genus. While species of Baru are a ubiquitous component of Oligo-Miocene crocodylian assemblages from northern Australia, they are absent from all known Plio-Pleistocene sites, suggesting the extinction of the genus by the latest Miocene. We suggest that the marked taxonomic turnover of crocodylian assemblages between the upper Miocene Alcoota Local Fauna and the lower Pliocene is the result of a short period of severe aridity during the latest Miocene, causing widespread crocodylian extinctions across Australia, followed by the establishment of taxonomically novel crocodylian faunas in the Pliocene.


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Article DOI: 10.1002/spp2.1523

Project DOI: 10.7934/P4602, http://dx.doi.org/10.7934/P4602
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 142 Taxa
  • 1 Specimen
  • 236 Characters
Total size of project's media files: 1.56M

Download Project SDD File
Total scored cells: 20373
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 236
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 566
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:216/20
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MorphoBank Project 4602

    Authors' Institutions

    • University of Queensland

    • Museum and Art Gallery of the Northern Territory



    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
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    Adam Yates
    Project Administrator
    1421123600019035
    (18578, 0, 457)
    0000
    Jorgo Ristevski
    Full membership
    00000001338
    (1287, 0, 51)
    0000
    Steven Salisbury
    Full membership
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    Taxonomic Overview for Matrix 'M29206' (142 Taxa)

    taxon unscored
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    scored
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    [1] † Anteopthalmosuchus epikrator
    Taxon name last Modified on 03/22/23
    8614914901003
    [2] † Theriosuchus pusillus
    Taxon name last Modified on 03/22/23
    6716716603003
    [3] † Bernissartia fagesii
    Taxon name last Modified on 03/22/23
    7715415405003
    [4] † Shamosuchus djadochtaensis
    Taxon name last Modified on 03/22/23
    13210110004003
    [5] † Acynodon adriaticus
    Taxon name last Modified on 03/22/23
    13310010003003
    [6] † Acynodon iberoccitanus
    Taxon name last Modified on 03/22/23
    11212112004003
    [7] † Agaresuchus fontisensis
    Taxon name last Modified on 03/22/23
    8115015005003
    [8] † Agaresuchus subjuniperus
    Taxon name last Modified on 03/22/23
    135999902003
    [9] † Alligator mcgrewi
    Taxon name last Modified on 03/22/23
    5717417405003
    [10] † Alligator mefferdi
    Taxon name last Modified on 03/22/23
    7715315306003
    [11] Alligator mississippiensis
    Taxon name last Modified on 03/22/23
    123122906003
    [12] † Alligator olseni
    Taxon name last Modified on 03/22/23
    7615415406003
    [13] † Alligator prenasalis
    Taxon name last Modified on 03/22/23
    5117917906003
    [14] Alligator sinensis
    Taxon name last Modified on 03/22/23
    822222206003
    [15] † Alligator thomsoni
    Taxon name last Modified on 03/22/23
    9713313306003
    [16] † Allodaposuchus precedens
    Taxon name last Modified on 03/22/23
    12610710703003
    [17] † Allognathosuchus polyodon
    Taxon name last Modified on 03/22/23
    148848404003
    [18] † Allognathosuchus wartheni
    Taxon name last Modified on 03/22/23
    8314814805003
    [19] † Arambourgia gaudryi
    Taxon name last Modified on 03/22/23
    134969606003
    [20] † Arenysuchus gascabadiolorum
    Taxon name last Modified on 03/22/23
    151838302003
    [21] † Asiatosuchus germanicus
    Taxon name last Modified on 03/22/23
    7815315305003
    [22] † Australosuchus clarkae
    Taxon name last Modified on 03/22/23
    8115215203003
    [23] † Baru darrowi
    Taxon name last Modified on 03/22/23
    13010310303003
    [24] † Baru iylwenpeny
    Taxon name last Modified on 03/22/23
    4519318704003
    [25] † Baru wickeni
    Taxon name last Modified on 03/22/23
    9713713702003
    [26] † Borealosuchus acutidentatus
    Taxon name last Modified on 03/22/23
    154808002003
    [27] † Borealosuchus formidibalis
    Taxon name last Modified on 03/22/23
    3619619505003
    [28] † Borealosuchus sternbergii
    Taxon name last Modified on 03/22/23
    3719419306003
    [29] † Borealosuchus threeensis
    Taxon name last Modified on 03/22/23
    192414103003
    [30] † Borealosuchus wilsoni
    Taxon name last Modified on 03/22/23
    8914214205003
    [31] † Bottosaurus harlani
    Taxon name last Modified on 03/22/23
    152828202003
    [32] † Boverisuchus magnifrons
    Taxon name last Modified on 03/22/23
    11112112104003
    [33] † Boverisuchus vorax
    Taxon name last Modified on 03/22/23
    6416816705003
    [34] † Brachychampsa montana
    Taxon name last Modified on 03/22/23
    4119119104003
    [35] † Brachychampsa sealeyi
    Taxon name last Modified on 03/22/23
    157767603003
    [36] † Brachyuranochampsa eversolei
    Taxon name last Modified on 03/22/23
    9713513504003
    [37] † Brochuchus pigotti
    Taxon name last Modified on 03/22/23
    9413913903003
    [38] Caiman crocodilus
    Taxon name last Modified on 03/22/23
    323222904003
    [39] Caiman latirostris
    Taxon name last Modified on 03/22/23
    1022422204003
    [40] † Caiman lutescens
    Taxon name last Modified on 03/22/23
    166696901003
    [41] Caiman yacare
    Taxon name last Modified on 03/22/23
    722522504003
    [42] † Centenariosuchus gilmorei
    Taxon name last Modified on 03/22/23
    159747403003
    [43] † Ceratosuchus burdoshi
    Taxon name last Modified on 03/22/23
    141919104003
    [44] Crocodylus acutus
    Taxon name last Modified on 03/22/23
    622822703003
    [45] † Crocodylus anthropophagus
    Taxon name last Modified on 03/22/23
    9613713703003
    [46] † Crocodylus checchiai
    Taxon name last Modified on 03/22/23
    8914414403003
    [47] Crocodylus intermedius
    Taxon name last Modified on 03/22/23
    1821621503003
    [48] Crocodylus johnstoni
    Taxon name last Modified on 03/22/23
    123323104003
    [49] Crocodylus mindorensis
    Taxon name last Modified on 03/22/23
    2620820703003
    [50] Crocodylus moreletii
    Taxon name last Modified on 03/22/23
    422922804003
    [51] Crocodylus niloticus
    Taxon name last Modified on 03/22/23
    123323104003
    [52] Crocodylus novaeguineae
    Taxon name last Modified on 03/22/23
    223123004003
    [53] Crocodylus palustris
    Taxon name last Modified on 03/22/23
    1621821703003
    [54] † Crocodylus palaeindicus
    Taxon name last Modified on 03/24/23
    8414914903003
    [55] Crocodylus porosus
    Taxon name last Modified on 03/22/23
    123223104003
    [56] Crocodylus raninus
    Taxon name last Modified on 03/22/23
    10912612601003
    [57] Crocodylus rhombifer
    Taxon name last Modified on 03/22/23
    223123004003
    [58] Crocodylus siamensis
    Taxon name last Modified on 03/22/23
    323022904003
    [59] † Crocodylus thorbjnarsoni
    Taxon name last Modified on 03/22/23
    8115415302003
    [60] † "Crocodylus" acer
    Taxon name last Modified on 03/22/23
    12510910902003
    [61] † "Crocodylus" affinis
    Taxon name last Modified on 03/22/23
    4818418404003
    [62] † "Crocodylus" depressifrons
    Taxon name last Modified on 03/22/23
    5218018004003
    [63] † "Crocodylus" gariepensis
    Taxon name last Modified on 03/22/23
    12011411402003
    [64] † "Crocodylus" megarhinus
    Taxon name last Modified on 03/22/23
    9114214203003
    [65] † Culebrasuchus mesoamericanus
    Taxon name last Modified on 03/22/23
    176585802003
    [66] † Deinosuchus riograndensis
    Taxon name last Modified on 03/22/23
    12410710705003
    [67] † Diplocynodon darwini
    Taxon name last Modified on 03/22/23
    5917317304003
    [68] † Diplocynodon deponiae
    Taxon name last Modified on 03/22/23
    10912112106003
    [69] † Diplocynodon hantoniensis
    Taxon name last Modified on 03/22/23
    4818318305003
    [70] † Diplocynodon muelleri
    Taxon name last Modified on 03/22/23
    9513913803003
    [71] † Diplocynodon ratelii
    Taxon name last Modified on 03/22/23
    5517617605003
    [72] † Diplocynodon tormis
    Taxon name last Modified on 03/22/23
    10213013004003
    [73] † Dollosuchoides densmorei
    Taxon name last Modified on 03/26/23
    7815415305003
    [74] † Eoalligator chunyii
    Taxon name last Modified on 03/22/23
    182525103003
    [75] † Eocaiman cavernensis
    Taxon name last Modified on 03/22/23
    180545402003
    [76] † Eogavialis africanum
    Taxon name last Modified on 03/22/23
    9114114104003
    [77] † Eosuchus lerichei
    Taxon name last Modified on 03/22/23
    10712712702003
    [78] † Eosuchus minor
    Taxon name last Modified on 03/22/23
    7016216105003
    [79] † Eothoracosaurus mississippiensis
    Taxon name last Modified on 03/22/23
    10212812806003
    [80] † Euthecodon arambourgi
    Taxon name last Modified on 03/22/23
    12810410404003
    [81] Gavialis gangeticus
    Taxon name last Modified on 03/22/23
    222822806003
    [82] † Gavialis lewisi
    Taxon name last Modified on 03/22/23
    13010210204003
    [83] † Gavialosuchus eggenburgensis
    Taxon name last Modified on 03/22/23
    144909002003
    [84] † Globidentosuchus brachyrostris
    Taxon name last Modified on 03/22/23
    144888804003
    [85] † Gryposuchus colombianus
    Taxon name last Modified on 03/22/23
    6816216206003
    [86] † Harpacochampsa camfieldensis
    Taxon name last Modified on 03/22/23
    156797901003
    [87] † Hassiacosuchus haupti
    Taxon name last Modified on 03/22/23
    10812212206003
    [88] † Hylaeochampsa vectiana
    Taxon name last Modified on 03/22/23
    144898903003
    [89] † Iharkutosuchus makadii
    Taxon name last Modified on 03/22/23
    9313713706003
    [90] † Isisfordia duncani
    Taxon name last Modified on 03/22/23
    9214114004003
    [91] † Jiangxisuchus nankangensis
    Taxon name last Modified on 03/22/23
    10113613401003
    [92] † Kalthifrons aurivellensis
    Taxon name last Modified on 03/22/23
    173646201003
    [93] † Kambara implexidens
    Taxon name last Modified on 03/22/23
    7116116104003
    [94] † Kambara murgonensis
    Taxon name last Modified on 03/22/23
    13310010003003
    [95] † Kambara taraina
    Taxon name last Modified on 03/22/23
    11611811802003
    [96] † Kentisuchus spenceri
    Taxon name last Modified on 03/22/23
    10812312305003
    [97] † Krabisuchus siamogallicus
    Taxon name last Modified on 03/22/23
    139979403003
    [98] † Leidyosuchus canadensis
    Taxon name last Modified on 03/22/23
    4818318305003
    [99] † Lohuecosuchus mechinorum
    Taxon name last Modified on 03/22/23
    135999902003
    [100] † Lohuecosuchus megadontos
    Taxon name last Modified on 03/22/23
    8614814604003
    [101] † Maomingosuchus petrolica
    Taxon name last Modified on 03/22/23
    13210110004003
    [102] Mecistops cataphractus
    Taxon name last Modified on 03/22/23
    622722604003
    [103] † Megadontosuchus arduini
    Taxon name last Modified on 03/22/23
    147888801003
    [104] † Mekosuchus sanderi
    Taxon name last Modified on 03/22/23
    164727200003
    [105] † Mekosuchus whitehunterensis
    Taxon name last Modified on 03/22/23
    184494903003
    [106] Melanosuchus niger
    Taxon name last Modified on 03/22/23
    922322304003
    [107] † Mourasuchus atopus
    Taxon name last Modified on 03/22/23
    8514814803003
    [108] † Navajosuchus mooki
    Taxon name last Modified on 03/22/23
    10112912906003
    [109] † Orientalosuchus naduongensis
    Taxon name last Modified on 03/22/23
    9114614203003
    [110] † Orthogenysuchus olseni
    Taxon name last Modified on 03/22/23
    184515101003
    [111] Osteolaemus osborni
    Taxon name last Modified on 03/22/23
    1721821603003
    [112] Osteolaemus tetraspis
    Taxon name last Modified on 03/22/23
    622722604003
    [113] † Pachycheilosuchus trinquei
    Taxon name last Modified on 03/22/23
    183515102003
    [114] Paleosuchus palpebrosus
    Taxon name last Modified on 03/22/23
    922322205003
    [115] Paleosuchus trigonatus
    Taxon name last Modified on 03/22/23
    722622405003
    [116] † Paludirex vincenti
    Taxon name last Modified on 03/22/23
    157797900003
    [117] † Paratomistoma courti
    Taxon name last Modified on 03/22/23
    160737204003
    [118] † Penghusuchus pani
    Taxon name last Modified on 03/22/23
    8714714702003
    [119] † Pietraroiasuchus ormezzanoi
    Taxon name last Modified on 03/22/23
    148848404003
    [120] † Piscogavialis jugaliperforatus
    Taxon name last Modified on 03/22/23
    10312912904003
    [121] † Planocrania datangensis
    Taxon name last Modified on 03/22/23
    159737304003
    [122] † Planocrania hengdongensis
    Taxon name last Modified on 03/22/23
    152838103003
    [123] † Portugalosuchus azenhae
    Taxon name last Modified on 03/22/23
    156787802003
    [124] † "Tomistoma" cairense
    Taxon name last Modified on 03/22/23
    137959504003
    [125] † Procaimanoidea kayi
    Taxon name last Modified on 03/22/23
    9214014004003
    [126] † Procaimanoidea utahensis
    Taxon name last Modified on 03/22/23
    10013313204003
    [127] † Prodiplocynodon langi
    Taxon name last Modified on 03/22/23
    13110310302003
    [128] † Protoalligator huiningensis
    Taxon name last Modified on 03/22/23
    201343401003
    [129] † Purussaurus neivensis
    Taxon name last Modified on 03/22/23
    7715715702003
    [130] † Quinkana timara
    Taxon name last Modified on 03/22/23
    144939200003
    [131] † Rimasuchus lloydi
    Taxon name last Modified on 03/22/23
    13210110103003
    [132] † Stangerochampsa mccabei
    Taxon name last Modified on 03/22/23
    5617617406003
    [133] † Susisuchus anatoceps
    Taxon name last Modified on 03/22/23
    10313113102003
    [134] † Thecachampsa antiqua
    Taxon name last Modified on 03/22/23
    8115115104003
    [135] † Thoracosaurus macrorhynchus
    Taxon name last Modified on 03/22/23
    10013213204003
    [136] † Thoracosaurus neocesariensis
    Taxon name last Modified on 03/22/23
    8914314304003
    [137] † Tomistoma lusitanica
    Taxon name last Modified on 03/22/23
    9313913904003
    [138] Tomistoma schlegelii
    Taxon name last Modified on 03/22/23
    123022906003
    [139] † Toyotamaphimeia machikanensis
    Taxon name last Modified on 03/22/23
    7016416402003
    [140] † Tsoabichi greenriverensis
    Taxon name last Modified on 03/22/23
    163707003003
    [141] † Voay robustus
    Taxon name last Modified on 03/22/23
    4918518403003
    [142] † Wannaganosuchus brachymanus
    Taxon name last Modified on 03/22/23
    9613613604003


    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project6
    Document downloads1Phylogenetic matrix for Yates et al. "The last Baru (Crocodylia: Mekosuchinae)" (1 download);
    Project downloads1
    Matrix downloads4The phylogenetic position of Baru iylwenpeny within Crocodyliformes (4 downloads);