Project 2615: K. E. Criswell. 2015. The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi). Zoological Journal of the Linnean Society. 174:801-858.
Specimen: Neoceratodus forsteri (unvouchered)
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Abstract

Lepidosirenidae is a clade of freshwater lungfishes that include the extant South American Lepidosiren paradoxa Fitzinger, 1837 and African species of the genus Protopterus. These genera have been geographically separated since the break-up of Gondwana in the Early Cretaceous, but they display similar biology and morphology. Species were distinguished by a combination of features such as head-to-body ratios, the number of pairs of ribs, and the presence of external gills, but no discrete skeletal characters were identified, and no comparative studies including all extant species have been published. I used computed tomography (CT), X-ray photography, and specimens from museum collections to describe the skeletal morphology of all species of lepidosirenid in a comparative context.
I digitally disarticulated the bones in each specimen to compile a comparative atlas of the cranial and pectoral elements of all extant lungfishes, which has the potential to increase the correct identifications of specimens in museum collections. The morphology of the frontoparietal, parasphenoid, supraorbital, and suboperculum differ between species. I used those characters, along with molecular sequence data from the ribosomal RNA gene 16S, to run combined morphological and molecular phylogenetic analyses. Lepidosirenidae is monophyletic in all analyses, but the interrelationships of the species of Protopterus vary with the different sources of character data.


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Article DOI: DOI: 10.1111/zoj.12255

Project DOI: 10.7934/P2615, http://dx.doi.org/10.7934/P2615
This project containsMatrices
  • 3 Media
  • 1 Matrix
  • 1 Document
  • 18 Taxa
  • 3 Specimens
  • 41 Characters
Total size of project's media files: 4 MB

Download Project SDD File
Total scored cells: 531
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 41
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 112
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:41/0
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MorphoBank Project 2615


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    member name taxa specimens media chars character
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    (scored, NPA, "-")
    cell
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    MorphoBank Curator
    Project Administrator
    Last logged in 02/23/17
    18334100531
    (505, 0, 26)
    000
    Katherin Criswell
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    Taxonomic Overview for Matrix 'M24496' (18 Taxa)

    taxon unscored
    cells
    scored
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    no cell
    support
    NPA
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    "-" cellscell images labels on
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    member
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    [1] † Arganodus atlantis
    Last Modified in 02/14/17
    14252502002
    [2] † Asiatoceratodus
    Last Modified in 02/14/17
    23161602002
    [3] † Beltanodus
    Last Modified in 02/14/17
    27121202002
    [4] † Ceratodus
    Last Modified in 02/14/17
    21181802002
    [5] † Dipterus
    Last Modified in 02/14/17
    11282802002
    [6] † Fergano martini
    Last Modified in 02/14/17
    14252502002
    [7] † Gnathorhiza
    Last Modified in 02/14/17
    10292902002
    [8] † Gosfordia
    Last Modified in 02/14/17
    19202002002
    [9] Lepidosiren paradoxa
    Last Modified in 02/14/17
    0414100002
    [10] † Microceratodus
    Last Modified in 02/14/17
    27121202002
    [11] Neoceratodus forsteri
    Last Modified in 02/14/17
    0393902002
    [12] † Paraceratodus
    Last Modified in 02/14/17
    24151502002
    [13] Protopterus annectens
    Last Modified in 02/14/17
    0414100002
    [14] Protopterus amphibius
    Last Modified in 02/14/17
    0414100002
    [15] Protopterus aethiopicus
    Last Modified in 02/14/17
    0414100002
    [16] Protopterus dolloi
    Last Modified in 02/14/17
    0414100002
    [17] † Ptychoceratodus
    Last Modified in 02/14/17
    16232302002
    [18] † Sagenodus
    Last Modified in 02/14/17
    1383802002


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    Views for media list329
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    Bibliography212
    Taxon list1816




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