Project 4135: F. Tolchard, C. F. Kammerer, R. J. Butler, C. Hendrickx, J. Benoit, F. Abdala, J. N. Choiniere. 2021. A new large gomphodont from the Triassic of South Africa and its implications for Gondwanan biostratigraphy. Journal of Vertebrate Paleontology. 41 (2):null.
Specimen: † Thrinaxodon (unvouchered)
View: fossil

Abstract

A partial skull (BP/1/7976) of a very large cynodont from the Middle Triassic Cynognathus Assemblage Zone (Cricodon-Ufudocyclops subzone) of South Africa is described. The specimen represents a new gomphodont taxon, Impidens hancoxi, gen. et sp. nov., diagnosed by five sectorial teeth constituting just over half of the length of the upper postcanine tooth row, and enlarged canine and incisor teeth. BP/1/8123, a skull fragment also from the Cricodon-Ufudocyclops subzone, and AMNH FARB 24421, a partial skull from the upper Fremouw Formation of Antarctica, are also referred to the new species. The presence of this taxon in both the upper Fremouw Formation and Cricodon-Ufudocyclops subzone strengthens evidence of biostratigraphic correlation between these units. Impidens hancoxi, with an inferred skull length of up to 460 mm, was a large-bodied and likely omnivorous gomphodont, and may have played the role of apex predator within the tetrapod fauna of the Cricodon-Ufudocyclops subzone.


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Article DOI: 10.1080/02724634.2021.1929265

Project DOI: 10.7934/P4135, http://dx.doi.org/10.7934/P4135
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 29 Taxa
  • 1 Specimen
  • 78 Characters
Total size of project's media files: 37.03k

Download Project SDD File
Total scored cells: 1795
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 78
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 186
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:78/0
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MorphoBank Project 4135
  • Creation Date:
    24 November 2021
  • Publication Date:
    24 November 2021
  • Project views: 48

    Authors' Institutions

    • North Carolina Museum of Natural Sciences, Raleigh

    • University of Birmingham

    • University of the Witwatersrand

    • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

    • Fundación Miguel Lillo



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    291178001795
    (1784, 0, 11)
    000
    Frederick Tolchard
    Full membership
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M27715' (29 Taxa)

    taxon unscored
    cells
    scored
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    no cell
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    NPA
    cells
    "-" cellscell images labels on
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    [1] † Procynosuchus
    Last Modified in 11/24/21
    869690100none
    [2] † Galesaurus
    Last Modified in 11/24/21
    1067670100none
    [3] † Thrinaxodon
    Last Modified in 11/24/21
    869690100none
    [4] † Cynognathus
    Last Modified in 11/24/21
    968680100none
    [5] † Diademodon
    Last Modified in 11/24/21
    276760000none
    [6] † Trirachodon berryi
    Last Modified in 11/24/21
    969680000none
    [7] † Trirachodon kannemeyeri
    Last Modified in 11/24/21
    375740000none
    [8] † Cricodon
    Last Modified in 11/24/21
    1563620000none
    [9] † Langbergia
    Last Modified in 11/24/21
    969690000none
    [10] † Pascualgnathus
    Last Modified in 11/24/21
    573730000none
    [11] † Scalenodon angustifrons
    Last Modified in 11/24/21
    1266660000none
    [12] † Mandagomphodon
    Last Modified in 11/24/21
    2751510000none
    [13] † Luangwa
    Last Modified in 11/24/21
    771710000none
    [14] † Massetognathus
    Last Modified in 11/24/21
    177770000none
    [15] † Gomphodontosuchus
    Last Modified in 11/24/21
    2553530000none
    [16] † Exaeretodon
    Last Modified in 11/24/21
    375750000none
    [17] † Tritylodontidae
    Last Modified in 11/24/21
    573730000none
    [18] † Lumkuia
    Last Modified in 11/24/21
    1760600100none
    [19] † Probainognathus
    Last Modified in 11/24/21
    1364640100none
    [20] † Ectininion
    Last Modified in 11/24/21
    2750500100none
    [21] † Probelesodon
    Last Modified in 11/24/21
    1166660100none
    [22] † Aleodon
    Last Modified in 11/24/21
    2751510000none
    [23] † Chiniquodon
    Last Modified in 11/24/21
    1463630100none
    [24] † Pachygenelus
    Last Modified in 11/24/21
    1364640100none
    [25] † Morganucodon
    Last Modified in 11/24/21
    869690100none
    [26] † Sinognathus
    Last Modified in 11/24/21
    2949490000none
    [27] † Beishanodon
    Last Modified in 11/24/21
    3939390000none
    [28] † Impidens hancoxi
    Last Modified in 11/24/21
    6216160000none
    [29] † Titanogomphodon
    Last Modified in 11/24/21
    4929260000none


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views48
    Project overview4
    Matrix views3Matrix landing page (3 views);
    Media views13Media search (11 views); M824372 (2 views);
    Documents list2
    Bibliography2
    Views for media list3
    Specimen list5
    Taxon list16




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    Project downloads1