Project 4806: V. Dupret. 2004. The phylogenetic relationships between actinolepids (Placodermi: Arthrodira) and other arthrodires (phlyctaeniids and brachythoracids). Fossils and Strata. 50:44-55.
Specimen: † Buchanosteus confertituberculatus (unvouchered)
View: whole specimen (fossil)

Abstract

The phylogenetic relationships between actinolepids (Placodermi, Arthrodira) and other arthrodires (Phlyctaenii and Brachythoraci) are re-evaluated in connection with a study in progress on some Podolian and Spitsbergen actinolepid material. The species Kujdanowiaspis podolica (Brotzen, 1934) is briefly redescribed, and its characters discussed in relation to a recent cladistic analysis of the actinolepids. An enlarged phylogenetic analysis using a data matrix of 55 characters for 31 taxa reveals that the actinolepids may be a paraphyletic group; their taxonomic and nomenclatural status is briefly discussed. Within the actinolepids, the genus Kujdanowiaspis does not have the basal position proposed by previous authors. A proposed new phylogeny shows Wuttagoonaspis as the sister group to all other arthrodires, and the Phyllolepida as the sister group to the Phlyctaenioidei (Phlyctaenii plus Brachythoraci).


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Article DOI: 10.18261/9781405169868-2004-04

Project DOI: 10.7934/P4806, http://dx.doi.org/10.7934/P4806
This project containsMatrices
  • 2 Media
  • 1 Matrix
  • 1 Document
  • 31 Taxa
  • 2 Specimens
  • 55 Characters
Total size of project's media files: 440.07k

Download Project SDD File
Total scored cells: 1430
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 55
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 113
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:55/0
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MorphoBank Project 4806
  • Creation Date:
    02 August 2023
  • Publication Date:
    04 September 2023
  • Project views: 2084

    Authors' Institutions

    • Muséum national d'Histoire naturelle, Paris (Natural History Museum, Paris)



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Shreya Jariwala
    Project Administrator
    312255001430
    (1338, 0, 92)
    000


    Taxonomic Overview for Matrix 'M29413' (31 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
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    NPA
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    "-" cellscell images labels on
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    [1] † Antineosteus lehmani
    Last Modified in 08/02/23
    7474701001
    [2] † Buchanosteus confertituberculatus
    Last Modified in 08/02/23
    10444401001
    [3] † Coccosteus cuspidatus
    Last Modified in 08/02/23
    6484801001
    [4] † Arctolepis decipiens
    Last Modified in 08/02/23
    0555401001
    [5] † Dicksonosteus arcticus
    Last Modified in 08/02/23
    1535301001
    [6] † Groenlandaspis antarcticus
    Last Modified in 08/02/23
    6484801001
    [7] † Heintzoteus brevis
    Last Modified in 08/02/23
    2535300001
    [8] † Tiaraspis subtilis
    Last Modified in 08/02/23
    12424201001
    [9] † Actinolepis magna
    Last Modified in 08/02/23
    7474701001
    [10] † Actinolepis spinosa
    Last Modified in 08/02/23
    23313101001
    [11] † Actinolepis tuberculata
    Last Modified in 08/02/23
    14404001001
    [12] † Aethaspis major
    Last Modified in 08/02/23
    6474702001
    [13] † Aethaspis utahensis
    Last Modified in 08/02/23
    16373702001
    [14] † Aleosteus eganensis
    Last Modified in 08/02/23
    10444401001
    [15] † Anarthraspis sp.
    Last Modified in 08/02/23
    7474701001
    [16] † Baringaspis dineleyi
    Last Modified in 08/02/23
    6494801001
    [17] † Bollandaspis woschmidti
    Last Modified in 08/02/23
    35181802001
    [18] † Bryantolepis brachycephala
    Last Modified in 08/02/23
    7464602001
    [19] † Eskimaspis heintzi
    Last Modified in 08/02/23
    8474601001
    [20] † Heightingtonaspis anglica
    Last Modified in 08/02/23
    9454501001
    [21] † Kujdanowiaspis buczacziensis
    Last Modified in 08/02/23
    2515102001
    [22] † Kujdanowiaspis podolica
    Last Modified in 08/02/23
    2515102001
    [23] † Proaethaspis ohioensis
    Last Modified in 08/02/23
    11414103001
    [24] † Sigaspis lepidophora
    Last Modified in 08/02/23
    19353501001
    [25] † Simblaspis cachensis
    Last Modified in 08/02/23
    12424201001
    [26] † Phyllolepis orvini
    Last Modified in 08/02/23
    63232017001
    [27] † Placolepis budawangensis
    Last Modified in 08/02/23
    63333016001
    [28] † Austraphyllolepis sp.
    Last Modified in 08/02/23
    63333016001
    [29] † Wuttagoonaspis fletcheri
    Last Modified in 08/02/23
    16373603001
    [30] † Lunaspis broilii
    Last Modified in 08/02/23
    3484705001
    [31] † Eurycaraspis incilis
    Last Modified in 08/02/23
    6474603001


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