Project 538: S. Turner, C. J. Burrow. 2011. A Lower Carboniferous Xenacanthiform Shark from Australia. Journal of Vertebrate Paleontology. 31 (2):241-257.
Specimen: Reginaselache (QMF:39642)
View: Labiobasal

Abstract

A new Early Carboniferous (Mississippian, mid-Viséan) chondrichthyan, Reginaselache morrisi, n. g., n. sp., from non- or marginal marine sandy mudstones of the Tetrapod Unit of the mid-Viséan (330 Ma = top Holkerian/basal Asbian) Ducabrook Formation, northwest of Springsure, central Queensland, is referred to the order Xenacanthiformes. The taxon is represented by robust diplodont teeth with multicristate cusps, a prominent rounded coronal button, and a horseshoe-shaped labial boss. Rare spine fragments from the type locality, and a partial lower jaw from a site close by are also tentatively referred to the taxon. Reginaselache morrisi was a medium-sized, ca. 1 m long shark with numerous teeth, probably feeding on smaller paleoniscoid and other fishes and/or invertebrates. Analysis of the teeth and comparison with those of other Carboniferous and later Paleozoic xenacanthiforms shows that the tooth cusp morphology is closest to those of Triodus Hampe and Bohemiacanthus Schneider. A restricted cladistic analysis of the xenacanthiforms with outgroups Leonodus Mader, Phoebodus St John and Worthen, and Antarctilamna Young supports the family Diplodoselachidae Hampe as a clade comprising just two genera, Diplodoselache and Reginaselache.


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Project DOI: 10.7934/P538, http://dx.doi.org/10.7934/P538
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 3 Documents
  • 11 Taxa
  • 1 Specimen
  • 19 Characters
Total size of project's media files: 72.54k

Download Project SDD File
Total scored cells: 196
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 19
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 52
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:19/0
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MorphoBank Project 538

    Authors' Institutions

    • Monash University

    • Queensland Museum



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    11111900196
    (196, 0, 0)
    000
    Maureen Admin
    Full membership
    0000000
    (0, 0, 0)
    000
    Carole Burrow
    Full membership
    0000000
    (0, 0, 0)
    000
    Sue Turner
    Full membership
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M1217' (11 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
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    [1] Leonodus
    Last Modified in 12/05/13
    2171700004
    [2] Antarctilamna
    Last Modified in 12/05/13
    1201800004
    [3] Phoebodus
    Last Modified in 12/05/13
    5171400004
    [4] Diplodoselache
    Last Modified in 12/05/13
    0201900004
    [5] Hagenoselache
    Last Modified in 12/05/13
    5151400004
    [6] Lebachacanthus
    Last Modified in 12/05/13
    3161600004
    [7] Orthacanthus
    Last Modified in 12/05/13
    1181800004
    [8] Plicatodus
    Last Modified in 12/05/13
    1181800004
    [9] Reginaselache
    Last Modified in 12/05/13
    3161600004
    [10] Triodus
    Last Modified in 12/05/13
    0191900004
    [11] Xenacanthus
    Last Modified in 12/05/13
    1201800004


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views35328
    Project overview4299
    Media views6153M88275 (912 views); Media search (5241 views);
    Taxon list13937
    Matrix views2482Matrix landing page (2183 views); Xenacanthiform Shark (299 views);
    Specimen list3545
    Documents list1617
    Views for media list1989
    Bibliography1306




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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project465
    Document downloads1Copyright permission from SVP (1 download);
    Matrix downloads3Xenacanthiform Shark (3 downloads);
    Project downloads461