Project 849: Luke T. Holbrook. 1999. The Phylogeny and Classification of Tapiromorph Perissodactyls (Mammalia). Cladistics. 15 (3):331-350.
Specimen: † Cardiolophus semihians (UMMP:71839)

Abstract

Despite an excellent fossil record, the phylogeny of Perissodactyla is not well understood, in terms of both the relationships within Perissodactyla and the position of the Perissodactyla among the orders of mammals. This paper provides a phylogenetic analysis of one major perissodactyl lineage, the Tapiromorpha. This analysis combines a more comprehensive sampling of characters and taxa with rigorous tree-searching methods to create a new hypothesis of tapiromorph relationships. The phylogeny of tapiromorph perissodactyls is analyzed using 45 characters of the skull, postcranial skeleton, and dentition scored for 29 taxa, including three nontapiromorph outgroups. Phylogenetic taxonomic definitions are constructed for suprageneric taxa. According to the results of this analysis, the Chalicotherioidea cannot be unequivocally assigned to the Tapiromorpha, nor can Homogalax or Cardiolophus. Isectolophus, Tapiroidea, and Rhinocerotoidea are unequivocal members of the Tapiromorpha. Heptodon is included in a monophyletic Tapiroidea. Amynodontid rhinocerotoids come out as the sister group to rhinocerotids, and indricotheres do not fall within the Hyracodontidae. The results of this study provide further arguments that tapiromorphs (and putative tapiromorphs) may be important for understanding the ancestral morphology of Perissodactyla.


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Project DOI: 10.7934/P849, http://dx.doi.org/10.7934/P849
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 23 Taxa
  • 1 Specimen
  • 47 Characters
Total size of project's media files: 1 MB

Download Project SDD File
Total scored cells: 856
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 47
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:47/0
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MorphoBank Project 849


    Members

    member name taxa specimens media chars character
    media
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    (scored, NPA, "-")
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    MorphoBank Curator
    Project Administrator
    Last logged in 03/14/13
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    Maureen Admin
    Full membership
    Last logged in 03/14/13
    22004700856
    (856, 0, 0)
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    Luke Holbrook
    Full membership
    Last logged in 01/15/13
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    Taxonomic Overview for Matrix 'M1933' (22 Taxa)

    taxon unscored
    cells
    scored
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    "-" cellscell images labels on
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    [1] † Homogalax
    Last Modified in 12/05/13
    12353500003
    [2] † Isectolophus
    Last Modified in 12/05/13
    22252500003
    [3] † Eomoropus
    Last Modified in 12/05/13
    22252500003
    [4] † Moropus
    Last Modified in 12/05/13
    3444400003
    [5] † Heptodon
    Last Modified in 12/05/13
    2454500003
    [6] † Helaletes
    Last Modified in 12/05/13
    1464600003
    [7] † Colodon
    Last Modified in 12/05/13
    6414100003
    [8] † Protapirus
    Last Modified in 12/05/13
    20272700003
    [9] Tapirus
    Last Modified in 12/05/13
    1464600003
    [10] † Lophialetes
    Last Modified in 12/05/13
    10373700003
    [11] † Schlosseria
    Last Modified in 12/05/13
    22252500003
    [12] † Deperetella
    Last Modified in 12/05/13
    24232300003
    [13] † Hyrachyus
    Last Modified in 12/05/13
    1464600003
    [14] † Amynodon
    Last Modified in 12/05/13
    4434300003
    [15] † Hyracodon
    Last Modified in 12/05/13
    1464600003
    [16] † Juxia
    Last Modified in 12/05/13
    13343400003
    [17] † Paraceratherium
    Last Modified in 12/05/13
    2454500003
    [18] † Trigonias
    Last Modified in 12/05/13
    1464600003
    [19] † Subhyracodon
    Last Modified in 12/05/13
    1464600003
    [20] † Uintaceras
    Last Modified in 12/05/13
    6414100003
    [21] † Hyracotherium
    Last Modified in 12/05/13
    1464600003
    [22] † Phenacodus
    Last Modified in 12/05/13
    3444400003


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    Specimen list1799
    Taxon list10568
    Bibliography787
    Documents list1576




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    Total downloads from project162
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