Project 5254: B. A. Swartz. 2009. Devonian actinopterygian phylogeny and evolution based on a redescription of Stegotrachelus finlayi. Zoological Journal of the Linnean Society. 156 (4):750-784.
Specimen: † Osteolepis macrolepidotus (unvouchered)
View: whole specimen (fossil)

Abstract

Basal actinopterygian phylogeny is in a state of flux. Discoveries of new Devonian and Carboniferous taxa have not only contributed to our knowledge of these animals, but have also complicated our understanding of their interrelationships. Over the preceding 50 years, there have been several new discoveries and redescriptions of early actinopterygians; however, Tegeolepis clarki, Kentuckia hlavini, and Stegotrachelus finlayi have never been fully redescribed. Although previous authors have re-examined the skull of S. finlayi, new material has recently been collected, in 1973 and 2002. This study synthesizes information from original and new material to fully redescribe S. finlayi, and incorporates these data into a cladistic analysis that examines the interrelationships of early actinopterygians. Phylogenetic systematic data returned support for a monophyletic Stegotrachelidae - an evolutionary systematic hypothesis generated over 40 years ago. Previous palaeoenvironmental and biogeographic hypotheses were tested, with results supporting the independent freshwater origins of several Devonian actinopts, although a regional endemic grade of Gondwanan taxa is not confirmed.


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Article DOI: 10.1111/j.1096-3642.2009.00505.x

Project DOI: 10.7934/P5254, http://dx.doi.org/10.7934/P5254
This project containsMatrices
  • 3 Media
  • 1 Matrix
  • 1 Document
  • 22 Taxa
  • 3 Specimens
  • 59 Characters
Total size of project's media files: 22.36M

Download Project SDD File
Total scored cells: 1078
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 59
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 132
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:59/0
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MorphoBank Project 5254
  • Creation Date:
    23 May 2024
  • Publication Date:
    02 July 2024

    Authors' Institutions

    • University of California Berkeley



    Members

    member name taxa specimens media chars character
    media
    labels
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    (scored, NPA, "-")
    cell
    medialabels
    rules
    Shreya Jariwala
    Project Administrator
    223359001078
    (1022, 0, 56)
    000


    Taxonomic Overview for Matrix 'M29831' (22 Taxa)

    taxon unscored
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    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
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    [1] † Onychodus jandemarrai
    Taxon name last Modified on 05/23/24
    1494909001
    [2] † Miguashaia bureaui
    Taxon name last Modified on 05/23/24
    10434306001
    [3] † Uranolophus wyomingensis
    Taxon name last Modified on 05/23/24
    212727011001
    [4] † Osteolepis macrolepidotus
    Taxon name last Modified on 05/23/24
    5505004001
    [5] † Cheirolepis canadensis
    Taxon name last Modified on 05/23/24
    4545401001
    [6] † Cheirolepis schultzei
    Taxon name last Modified on 05/23/24
    16414102001
    [7] † Cheirolepis trailli
    Taxon name last Modified on 05/23/24
    2575700001
    [8] † Osorioichthys marginis
    Taxon name last Modified on 05/23/24
    12454502001
    [9] † Tegeolepis clarki
    Taxon name last Modified on 05/23/24
    15434301001
    [10] † Howqualepis rostridens
    Taxon name last Modified on 05/23/24
    1565602001
    [11] † Donnrosenia schaefferi
    Taxon name last Modified on 05/23/24
    15434301001
    [12] † Mimia toombsi
    Taxon name last Modified on 05/23/24
    0575702001
    [13] † Krasnoyarichthys jesseni
    Taxon name last Modified on 05/23/24
    32272700001
    [14] † Moythomasia durgaringa
    Taxon name last Modified on 05/23/24
    0565603001
    [15] † Moythomasia nitida
    Taxon name last Modified on 05/23/24
    2575700001
    [16] † Stegotrachelus finlayi
    Taxon name last Modified on 05/23/24
    9505000001
    [17] † Kentuckia hlavini
    Taxon name last Modified on 05/23/24
    21383800001
    [18] † Cuneognathus gardineri
    Taxon name last Modified on 05/23/24
    19373703001
    [19] † Limnomis delaneyi
    Taxon name last Modified on 05/23/24
    5515103001
    [20] † Melanecta anneae
    Taxon name last Modified on 05/23/24
    16414102001
    [21] † Wendyichthys dicksoni
    Taxon name last Modified on 05/23/24
    8494902001
    [22] † Woodichthys bearsdeni
    Taxon name last Modified on 05/23/24
    6515102001