Project 750: M. T. Silcox, J. I. Bloch, D. M. Boyer, P. Houde. 2010. Cranial anatomy of Paleocene and Eocene Labidolemur kayi (Mammalia: Apatotheria), and the relationships of the Apatemyidae to other mammals. Zoological Journal of the Linnean Society. 160 (4):773-825.
Specimen: † Labidolemur kayi (USNM:530221)
View: skull, left

Abstract

The relationships of the extinct mammalian family Apatemyidae are poorly resolved. Three new, well-preserved crania of Labidolemur kayi from the late Paleocene (Clarkforkian) and early Eocene (Wasatchian) of North America are described in part using ultra high resolution X-ray computed tomography data. These specimens permit the first descriptions of critical components of apatemyid cranial anatomy, such as the composition of the tympanic roof, and the pathways of the internal carotid artery and facial nerve. Results from cladistic analyses of morphological data for known apatemyids and a broad sample of eutherians suggest that apatemyids are basal members of Euarchontoglires, with weak support for a sister-group relationship with Glires. Although apatemyids are sufficiently different from other mammals to be placed in their own order, Apatotheria, it is clear that they are likely to be important for understanding primitive characteristics of Euarchontoglires and Boreoeutheria.


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Project DOI: 10.7934/P750, http://dx.doi.org/10.7934/P750
This project containsMatrices
  • 5 Media
  • 1 Matrix
  • 34 Taxa
  • 1 Specimen
  • 240 Characters
Total size of project's media files: 13 MB

Download Project SDD File
Total scored cells: 6440
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 240
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 584
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:240/0
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MorphoBank Project 750

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    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
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    Mary Silcox
    Project Administrator
    Last logged in 06/07/12
    3411240006440
    (6440, 0, 0)
    000
    MorphoBank Curator
    Full membership
    Last logged in 08/06/14
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    Taxonomic Overview for Matrix 'M1691' (34 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
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    NPA
    cells
    "-" cellscell images labels on
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    [1] Ukhaatherium nessovi
    Last Modified in 12/05/13
    1522522500002
    [2] † Labidolemur kayi
    Last Modified in 12/05/13
    1522522500002
    [3] Jepsenella praepropera
    Last Modified in 12/05/13
    154868600002
    [4] Apatemys sp.
    Last Modified in 12/05/13
    8016116000002
    [5] Heterohyus nanus
    Last Modified in 12/05/13
    8815215200002
    [6] Sinclairella dakotensis
    Last Modified in 12/05/13
    11312812700002
    [7] Carcinella sigei
    Last Modified in 12/05/13
    154868600002
    [8] Erinaceus europaeus
    Last Modified in 12/05/13
    723323300002
    [9] Echinosorex gymnura
    Last Modified in 12/05/13
    823223200002
    [10] Hemiechinus auritus
    Last Modified in 12/05/13
    3121020800002
    [11] Solenodon paradoxus
    Last Modified in 12/05/13
    1422922600002
    [12] Suncus murinus
    Last Modified in 12/05/13
    1023023000002
    [13] Sorex sp.
    Last Modified in 12/05/13
    1222922800002
    [14] Vulpavus profectus
    Last Modified in 12/05/13
    2721321300002
    [15] Uintacyon rudis
    Last Modified in 12/05/13
    12511511500002
    [16] Genetta sp.
    Last Modified in 12/05/13
    1422822600002
    [17] Pararyctes pattersoni
    Last Modified in 12/05/13
    8815215200002
    [18] Paleoryctes sp.
    Last Modified in 12/05/13
    11013013000002
    [19] Ottoryctes winkleri
    Last Modified in 12/05/13
    7416716500002
    [20] Gypsonictops sp.
    Last Modified in 12/05/13
    1411009900002
    [21] Leptictidae
    Last Modified in 12/05/13
    1123021500002
    [22] Rhombomylus turpanensis
    Last Modified in 12/05/13
    3221020800002
    [23] Ptilocercus lowii
    Last Modified in 12/05/13
    523720500002
    [24] Tupaia glis
    Last Modified in 12/05/13
    423820800002
    [25] Cynocephalus volans
    Last Modified in 12/05/13
    723322200002
    [26] Purgatorius sp.
    Last Modified in 12/05/13
    12512011500002
    [27] Microsyopidae
    Last Modified in 12/05/13
    7117016900002
    [28] Micromomyidae
    Last Modified in 12/05/13
    3321120700002
    [29] Paromomyidae
    Last Modified in 12/05/13
    1323222700002
    [30] Carpolestidae
    Last Modified in 12/05/13
    1922122100002
    [31] Plesiadapidae
    Last Modified in 12/05/13
    1223322800002
    [32] Altanius orlovi
    Last Modified in 12/05/13
    12711310300002
    [33] Omomyidae
    Last Modified in 12/05/13
    3621620200002
    [34] Adapidae
    Last Modified in 12/05/13
    424523400002


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    Taxon list11062
    Specimen list1875
    Media views5697M109740 (452 views); Media search (3418 views); M109739 (419 views); M109728 (492 views); M109738 (453 views); M109737 (463 views);
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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project213
    Matrix downloads31Labidolemur cranial (31 downloads);
    Project downloads182