Project 5185: R. J. Damiani, J. W. Kitching. 2003. A new brachyopid temnospondyl from theCynognathusAssemblage Zone, Upper Beaufort Group, South Africa. Journal of Vertebrate Paleontology. 23 (1):67-78.
Specimen: † Hadrokkosaurus (unvouchered)
View: Part (fossil)

Abstract

A new brachyopid temnospondyl is described from the Early to Middle Triassic Cynognathus Assemblage Zone of the upper Beaufort Group, Karoo Basin of South Africa. Vanastega plurimidens, gen. et sp. nov. is the third brachyopid taxon from the South African Karoo and is distinguished from all other brachyopids mainly through a combination of primitive and derived character states. The position of the nostrils exceptionally close to and anteriorly confluent with the skull margin represents the single known autapomorphy of V. plurimidens. Incorporation of V. plurimidens into a data matrix modified from a recent PAUP-based study of brachyopoids produces a phylogeny in which V. plurimidens is the sister species to Vigilius wellesi from the Anisian of North America. In addition, the Brachyopoidea appear to be phylogenetically closer to the Dvinosauria than to other Triassic temnospondyls, with weak support for the alternative hypothesis, which places the Brachyopoidea closer to typical Triassic stereospondyls. This suggests that brachyopids are derived dvinosaurians, in agreement with earlier hypotheses of brachyopoid interrelationships. Stratigraphie calibration of this phylogeny reveals significant ghost lineages primarily within the Brachyopidae and Chigutisauridae, but also suggests a ghost lineage for the Brachyopoidea back into the Late Permian of southern Africa.


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Article DOI: 10.1671/0272-4634(2003)23[67:anbtft]2.0.co;2

Project DOI: 10.7934/P5185, http://dx.doi.org/10.7934/P5185
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 27 Taxa
  • 1 Specimen
  • 61 Characters
Total size of project's media files: 111.7k

Download Project SDD File
Total scored cells: 1275
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 61
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 149
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:61/0
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MorphoBank Project 5185
  • Creation Date:
    31 March 2024
  • Publication Date:
    01 April 2024

    Authors' Institutions

    • University of the Witwatersrand



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Shreya Jariwala
    Project Administrator
    271161001275
    (1247, 0, 28)
    000


    Taxonomic Overview for Matrix 'M29777' (27 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
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    [1] † Outgroup
    Taxon name last Modified on 03/31/24
    0616100001
    [2] † Dvinosauridae
    Taxon name last Modified on 03/31/24
    2565603001
    [3] † Tupilakosauridae
    Taxon name last Modified on 03/31/24
    3565602001
    [4] † Rhineceps
    Taxon name last Modified on 03/31/24
    2585801001
    [5] † Watsonisuchus
    Taxon name last Modified on 03/31/24
    0606001001
    [6] † Rhytidosteidae
    Taxon name last Modified on 03/31/24
    0606001001
    [7] † Brachyops
    Taxon name last Modified on 03/31/24
    26343401001
    [8] † Bothriceps
    Taxon name last Modified on 03/31/24
    21404000001
    [9] † Platycepsion
    Taxon name last Modified on 03/31/24
    43171701001
    [10] † Batrachosuchus browni
    Taxon name last Modified on 03/31/24
    18424201001
    [11] † Batrachosuchus watsoni
    Taxon name last Modified on 03/31/24
    13474701001
    [12] † Xenobrachyops
    Taxon name last Modified on 03/31/24
    4565601001
    [13] † Batrachosuchus concordi
    Taxon name last Modified on 03/31/24
    16444401001
    [14] † Batrachosuchus henwoodi
    Taxon name last Modified on 03/31/24
    19414101001
    [15] † Banksiops
    Taxon name last Modified on 03/31/24
    9515101001
    [16] † Hadrokkosaurus
    Taxon name last Modified on 03/31/24
    3575701001
    [17] † Notobrachyops
    Taxon name last Modified on 03/31/24
    46131302001
    [18] † Batrachosuchoides
    Taxon name last Modified on 03/31/24
    40191902001
    [19] † Sinobrachyops
    Taxon name last Modified on 03/31/24
    20404001001
    [20] † Keratobrachyops australis
    Taxon name last Modified on 03/31/24
    4565601001
    [21] † Keratobrachyops sp.
    Taxon name last Modified on 03/31/24
    13474701001
    [22] † Pelorocephalus spp.
    Taxon name last Modified on 03/31/24
    0606001001
    [23] † Kuttycephalus
    Taxon name last Modified on 03/31/24
    19414101001
    [24] † Compsocerops
    Taxon name last Modified on 03/31/24
    5555501001
    [25] † Siderops
    Taxon name last Modified on 03/31/24
    11505000001
    [26] † Koolasuchus
    Taxon name last Modified on 03/31/24
    24373700001
    [27] † Vanastega
    Taxon name last Modified on 03/31/24
    11494901001