Project 989: R. B. Sookias, A. G. Sennikov, D. J. Gower, R. J. Butler, K. Angielczyk. 2014. The monophyly of Euparkeriidae (Reptilia: Archosauriformes) and the origins of Archosauria: a revision of Dorosuchus neoetus from the Mid-Triassic of Russia. Palaeontology. 57 (6):1177-1202.
Specimen: † Dorosuchus neoetus (PIN:1579/61-1)
View: Medial and lateral

Abstract

Euparkeria capensis is resolved as the sister taxon to Archosauria in many cladistic phylogenies and provides a key outgroup which may approximate the ancestral archosaur morphology. Several other taxa have been referred to the family Euparkeriidae, but the monophyly of this taxon remains doubtful and largely untested. To test this monophyly, the archosauriform and putative euparkeriid Dorosuchus neoetus from the Mid‐Triassic of Russia is re‐examined in the light of recent work on the evolution of stem archosaurs. Dorosuchus neoetus is found to possess a number of morphological features that place it close to Archosauria, including a sigmoidal femur with a clear attachment region for the m. caudifemoralis musculature, but no unambiguous archosaurian apomorphies. Dorosuchus neoetus is included for the first time in a numerical cladistic analysis and is recovered as the sole sister taxon to Archosauria + Phytosauria. A monophyletic Euparkeriidae including D. neoetus and E. capensis is slightly less parsimonious. In addition, a mandible and pterygoid that were previously referred to D. neoetus subsequent to the original description of the species are also included separately within the phylogenetic analysis and are recovered within Archosauria, possibly raising questions as to their correct taxonomic referral. However, this phylogenetic placement is based primarily on the absence of palatal teeth, but the presence or absence of palatal teeth exhibits considerable homoplasy within Archosauriformes. Based on other aspects of their morphology, we do not reject the referral of these elements to D. neoetus.


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Article DOI: 10.1111/pala.12110

Project DOI: 10.7934/P989, http://dx.doi.org/10.7934/P989
This project containsMatrices
  • 66 Media
  • 1 Matrix
  • 88 Taxa
  • 15 Specimens
  • 412 Characters
Total size of project's media files: 1.03G

Download Project SDD File
Total scored cells: 21859
Total media associated with cells: 114
Total labels associated with cell media: 121
Characters
Total characters: 412
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 905
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:412/0
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MorphoBank Project 989

    Authors' Institutions

    • Natural History Museum, London

    • Ludwig-Maximilians-Universitaet Muenchen

    • University of Birmingham

    • Russian Academy of Sciences

    • Kazan Federal University



    Members

    member name taxa specimens media media
    notes
    chars character
    comms
       
    notes  media
    labels
    cell scorings
    (scored, NPA, "-")
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    notes  medialabels
    rules
    Roland Sookias
    Project Administrator
    Last logged in 02/14/20
    88156610412000021859
    (20736, 0, 1123)
    51141210
    Richard Butler
    Full membership
    Last logged in 10/28/14
    0000000000
    (0, 0, 0)
    0000
    MorphoBank Curator
    Last logged in 02/16/20
    0000000000
    (0, 0, 0)
    0000
    MorphoBank Curator
    Last logged in 02/16/20
    0000000000
    (0, 0, 0)
    0000


    Taxonomic Overview for Matrix 'M2196' (88 Taxa)

    taxon unscored
    cells
    scored
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    NPA
    cells
    "-" cellscell images labels on
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    [1] † Mesosuchus browni
    Last Modified in 02/13/20
    35330330047002
    [2] † Prolacerta broomi
    Last Modified in 02/13/20
    13358358041002
    [3] † Archosaurus rossicus
    Last Modified in 02/13/20
    4075500002
    [4] † Proterosuchus fergusi
    Last Modified in 02/13/20
    19363363030002
    [5] † Erythrosuchus africanus
    Last Modified in 02/13/20
    27362362023002
    [6] † Vancleavea campi
    Last Modified in 02/13/20
    107281281024002
    [7] † Chanaresuchus bonapartei
    Last Modified in 02/13/20
    41359359012002
    [8] † Tropidosuchus romeri
    Last Modified in 02/13/20
    88310310014002
    [9] † Euparkeria capensis
    Last Modified in 02/13/20
    939539409002
    [10] † Parasuchus hislopi
    Last Modified in 02/13/20
    54346346012002
    [11] † Smilosuchus gregorii
    Last Modified in 02/13/20
    61337337014002
    [12] † Pseudopalatus pristinus
    Last Modified in 02/13/20
    19381381012002
    [13] † Gracilisuchus stipanicicorum
    Last Modified in 02/13/20
    10130230209002
    [14] † Turfanosuchus dabanensis
    Last Modified in 02/13/20
    14526026007002
    [15] † Ornithosuchus longidens
    Last Modified in 02/13/20
    13327227207002
    [16] † Riojasuchus tenuisceps
    Last Modified in 02/13/20
    5235135109002
    [17] † Revueltosaurus callenderi
    Last Modified in 02/13/20
    4036636606002
    [18] † Stagonolepis robertsoni
    Last Modified in 02/13/20
    9631231204002
    [19] † Aetosaurus ferratus
    Last Modified in 02/13/20
    14626526402002
    [20] † Longosuchus meadei
    Last Modified in 02/13/20
    6234334307002
    [21] † Ticinosuchus ferox
    Last Modified in 02/13/20
    20720120104002
    [22] † Qianosuchus mixtus
    Last Modified in 02/13/20
    12828128103002
    [23] † Xilousuchus sapingensis
    Last Modified in 02/13/20
    29511711700002
    [24] † Arizonasaurus babbitti
    Last Modified in 02/13/20
    148252252012002
    [25] † Poposaurus gracilis holotype
    Last Modified in 02/13/20
    373383801002
    [26] † Poposaurus gracilis yale
    Last Modified in 02/13/20
    186213212014002
    [27] † Lotosaurus adentus
    Last Modified in 02/13/20
    73309309030002
    [28] † Sillosuchus longicervix
    Last Modified in 02/13/20
    3247878010002
    [29] † Effigia okeeffeae
    Last Modified in 02/13/20
    69314314029002
    [30] † Shuvosaurus inexpectatus
    Last Modified in 02/13/20
    76307307029002
    [31] † Prestosuchus chiniquensis
    Last Modified in 02/13/20
    24116916902002
    [32] † UFRGS 0156-t
    Last Modified in 02/13/20
    24416616602002
    [33] † UFRGS 152-t
    Last Modified in 02/13/20
    14526426403002
    [34] † Combined prestosuchus
    Last Modified in 02/13/20
    5635235204002
    [35] † Saurosuchus galilei
    Last Modified in 02/13/20
    10230830802002
    [36] † Batrachotomus kuperferzellensis
    Last Modified in 02/13/20
    6234934901002
    [37] † Fasolasuchus tenax
    Last Modified in 02/13/20
    24916116102002
    [38] † Rauisuchus triradentes
    Last Modified in 02/13/20
    28013213200002
    [39] † Polonosuchus silesiacus
    Last Modified in 02/13/20
    29411811800002
    [40] † Postosuchus kirkpatricki
    Last Modified in 02/13/20
    7233633604002
    [41] † Postosuchus alisonae
    Last Modified in 02/13/20
    24216816802002
    [42] † CM 73372
    Last Modified in 02/13/20
    24716116104002
    [43] † Hesperosuchus agilis
    Last Modified in 02/13/20
    19521421403002
    [44] † Dromicosuchus grallator
    Last Modified in 02/13/20
    13926926904002
    [45] † Hesperosuchus "agilis"
    Last Modified in 02/13/20
    11928828805002
    [46] † Dibothrosuchus elaphros
    Last Modified in 02/13/20
    18921721706002
    [47] † Terrestrisuchus gracilis
    Last Modified in 02/13/20
    8831631608002
    [48] † Sphenosuchus acutus
    Last Modified in 02/13/20
    19221521505002
    [49] † Litargosuchus leptorhynchus
    Last Modified in 02/13/20
    22018918903002
    [50] † Kayentasuchus walkeri
    Last Modified in 02/13/20
    30410610602002
    [51] † Orthosuchus stormbergi
    Last Modified in 02/13/20
    78320320014002
    [52] Alligator mississippiensis
    Last Modified in 12/05/13
    4369367041002
    [53] † Protosuchus haughtoni
    Last Modified in 02/13/20
    24915815805002
    [54] † Protosuchus richardsoni
    Last Modified in 02/13/20
    41359359012002
    [55] † Eudimorphodon ranzii
    Last Modified in 02/13/20
    186191191035002
    [56] † Dimorphodon macronyx
    Last Modified in 02/13/20
    177200200035002
    [57] † Lagerpeton chanarensis
    Last Modified in 02/13/20
    259133133020002
    [58] † Dromomeron gregorii
    Last Modified in 02/13/20
    369424201002
    [59] † Dromomeron romeri
    Last Modified in 02/13/20
    3316161020002
    [60] † Marasuchus lilloensis
    Last Modified in 02/13/20
    193203203016002
    [61] † Asilisaurus kongwe
    Last Modified in 02/13/20
    222174174016002
    [62] † Eucoelophysis baldwini
    Last Modified in 02/13/20
    386262600002
    [63] † Sacisaurus agudoensis
    Last Modified in 02/13/20
    318909004002
    [64] † Lewisuchus admixtus
    Last Modified in 02/13/20
    273129129010002
    [65] † Pseudolagosuchus majori
    Last Modified in 02/13/20
    3009595017002
    [66] † Lewisuchus/Pseudolagosuchus
    Last Modified in 02/13/20
    18722322302002
    [67] † Eocursor parvus
    Last Modified in 02/13/20
    259140140013002
    [68] † Silesaurus opolensis
    Last Modified in 02/13/20
    56333332024002
    [69] † Pisanosaurus mertii
    Last Modified in 02/13/20
    3078888017002
    [70] † Heterodontosaurus tucki
    Last Modified in 02/13/20
    44342340028002
    [71] † Lesothosaurus diagnosticus
    Last Modified in 02/13/20
    59328327026002
    [72] † Scutellosaurus lawleri
    Last Modified in 02/13/20
    229168167016002
    [73] † Herrerasaurus ischigualastensis
    Last Modified in 02/13/20
    46343343023002
    [74] † Staurikosaurus pricei
    Last Modified in 02/13/20
    284115115013002
    [75] † Eoraptor lunensis
    Last Modified in 02/13/20
    108282281023002
    [76] † Saturnalia tupiniquim
    Last Modified in 02/13/20
    199192192021002
    [77] † Plateosaurus engelhardti
    Last Modified in 02/13/20
    6382382024002
    [78] † Efraasia minor
    Last Modified in 02/13/20
    68318318026002
    [79] † Tawa hallae
    Last Modified in 02/13/20
    45343343024002
    [80] † Coelophysis bauri
    Last Modified in 02/13/20
    31360360021002
    [81] † Dilophosaurus wetherelli
    Last Modified in 02/13/20
    53336336023002
    [82] † Allosaurus fragilis
    Last Modified in 02/13/20
    11371371030002
    [83] † Velociraptor mongoliensis
    Last Modified in 02/13/20
    44335334034002
    [84] † Dorosuchus neoetus
    Last Modified in 02/13/20
    311990021141212
    [85] † Dorosuchus holotype
    Last Modified in 02/13/20
    360505002002
    [86] † Dorosuchus braincase
    Last Modified in 02/13/20
    378343400002
    [87] † Dorosuchus holotype block
    Last Modified in 02/13/20
    319919102002
    [88] † Dorosuchus mandible & pterygoid
    Last Modified in 02/13/20
    4057700002


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views4354
    Project overview217
    Matrix views146Unmodified matrix from Nesbitt (2011) including Dorosuchus neoetus (15 views); Matrix landing page (131 views);
    Media views2460Media search (322 views); M304282 (28 views); M304247 (34 views); M304248 (32 views); M304246 (34 views); M304285 (30 views); M304272 (31 views); M304287 (29 views); M304249 (32 views); M304240 (36 views); M304252 (32 views); M304242 (37 views); M304250 (32 views); M304286 (29 views); M304232 (35 views); M304230 (33 views); M304237 (34 views); M304238 (34 views); M304280 (26 views); M304245 (33 views); M304262 (30 views); M304239 (37 views); M304241 (32 views); M304270 (29 views); M304255 (33 views); M304236 (36 views); M304277 (28 views); M304279 (30 views); M304271 (29 views); M304278 (29 views); M304222 (35 views); M304231 (38 views); M304243 (36 views); M304284 (30 views); M304244 (34 views); M304235 (33 views); M304276 (29 views); M304265 (28 views); M304221 (34 views); M304259 (29 views); M304220 (34 views); M304261 (29 views); M304256 (31 views); M304251 (36 views); M304225 (36 views); M304260 (29 views); M304215 (37 views); M304274 (29 views); M304234 (34 views); M304229 (34 views); M304219 (36 views); M304228 (35 views); M304226 (33 views); M304227 (34 views); M304216 (38 views); M304283 (30 views); M304266 (30 views); M304233 (35 views); M304269 (30 views); M304217 (36 views); M304218 (33 views); M304223 (35 views); M304224 (34 views); M304253 (35 views); M304263 (29 views); M304264 (27 views); M304273 (29 views);
    Specimen list490
    Taxon list711
    Views for media list282
    Bibliography48




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project32
    Project downloads26
    Media downloads1M304215 (1 download);
    Matrix downloads5Unmodified matrix from Nesbitt (2011) including Dorosuchus neoetus (5 downloads);