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.


Read the article »

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
    comms
       
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    cell scorings
    (scored, NPA, "-")
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    medialabels
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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
    00000000
    (0, 0, 0)
    0000


    Taxonomic Overview for Matrix 'M29206' (142 Taxa)

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


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    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project3
    Document downloads1Phylogenetic matrix for Yates et al. "The last Baru (Crocodylia: Mekosuchinae)" (1 download);
    Project downloads1
    Matrix downloads1The phylogenetic position of Baru iylwenpeny within Crocodyliformes (1 download);