Project 2215: M. C. Vallejo-Pareja, J. D. Carrillo, J. W. Moreno-Bernal, M. Pardo-Jaramillo, D. F. Rodriguez-Gonzalez, J. Muñoz-Duran. 2015. Hilarcotherium castanedaii, gen. et sp. nov., a New Miocene Astrapothere (Mammalia, Astrapotheriidae) from the Upper Magdalena Valley, Colombia. Journal of Vertebrate Paleontology. 35 (2):e903960.
Specimen: † Astrapotherium (unvouchered)
View: skull

Abstract

Astrapotheria is an order of extinct South American herbivores recorded throughout the continent, from the late Paleocene to middle Miocene. Here we describe Hilarcotherium castanedaii, gen. et sp. nov., an Uruguaytheriinae astrapothere from sediments of La Victoria Formation (middle Miocene) in the Tolima Department, Upper Magdalena Valley, Colombia. H. castanedaii, represented by a partial skull, mandible, and some postcranial remains, is characterized by (1) unique dental formula, with 0/3i, 1/1c, 1/1p, and 3/3 m; and (2) lower canines with subtriangular transverse section at the base. Hilarcotherium differs from the equatorial Uruguaytheriinae genera Xenastrapotherium and Granastrapotherium in (1) having three lower incisors; (2) the diagonal implantation of the lower canines; (3) lower molars with lingual cingulid; (4) the presence of the hypocone in the third upper molar; and (5) the presence of an anterolingual pocket in the fourth upper premolar. Our phylogenetic analysis supports the monophyly of the subfamilies Astrapotheriinae and Uruguaytheriinae. Within the latter, we confirm the monophyly of the neotropical clade (Hilarcotherium, Xenastrapotherium, and Granastrapotherium). H. castanedaii shows some plesiomorphic features such as the aforementioned presence of the i3 and the developed hypocone in the last upper molar. Its estimated body mass (1303 kg) is intermediate among Astrapotheriidae.


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Article DOI: http://dx.doi.org/10.1080/02724634.2014.903960

Project DOI: 10.7934/P2215, http://dx.doi.org/10.7934/P2215
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 2 Documents
  • 15 Taxa
  • 2 Specimens
  • 64 Characters
Total size of project's media files: 2 MB

Download Project SDD File
Total scored cells: 690
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 64
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 143
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:3/61
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MorphoBank Project 2215


    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    Last logged in 07/17/15
    0000000
    (0, 0, 0)
    000
    Maureen Admin
    Full membership
    Last logged in 09/25/17
    1110000
    (0, 0, 0)
    000
    Juan David Carrillo
    Full membership
    Last logged in 09/25/17
    14106400690
    (659, 0, 31)
    000
    J. W. Moreno-Bernal
    Full membership
    Last logged in 07/17/15
    0000000
    (0, 0, 0)
    000
    M. C. Pardo-Jaramillo
    Full membership
    Last logged in Never
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    (0, 0, 0)
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    F. Rodriguez-Gonzalez
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    M. C. Vallejo-Pareja
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    Taxonomic Overview for Matrix 'M24826' (15 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Eoastrapostylops
    Last Modified in 09/25/17
    16444404007
    [2] † Trigonostylops
    Last Modified in 09/25/17
    0626004007
    [3] † Tetragonostylops
    Last Modified in 09/25/17
    13514902007
    [4] † Albertogaudrya
    Last Modified in 09/25/17
    23393902007
    [5] † Scaglia
    Last Modified in 09/25/17
    45181801007
    [6] † Astraponotus
    Last Modified in 09/25/17
    17494502007
    [7] † Maddenia
    Last Modified in 09/25/17
    19454401007
    [8] † Parastrapotherium
    Last Modified in 09/25/17
    5585801007
    [9] † Astrapotherium
    Last Modified in 09/25/17
    0626202007
    [10] † Granastrapotherium
    Last Modified in 09/25/17
    6545404007
    [11] † Astrapothericulus
    Last Modified in 09/25/17
    12515002007
    [12] † Xenastrapotherium
    Last Modified in 09/25/17
    14484802007
    [13] † Uruguaytherium
    Last Modified in 09/25/17
    568800007
    [14] † Comahuatherium
    Last Modified in 09/25/17
    35282801007
    [15] † Hilarcotherium
    Last Modified in 09/25/17
    19424203007


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    Documents list1264
    Taxon list3395
    Specimen list1696
    Views for media list734
    Bibliography546
    Matrix views254Matrix landing page (239 views); Matrix Astrapotheriidae (15 views);




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    Total downloads from project154
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