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: 13.04M

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

    This research
    supported by

    Authors' Institutions

    • New Mexico State University

    • University of Florida

    • University of Winnipeg

    • Stony Brook University



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    Mary Silcox
    Project Administrator
    3411240006440
    (6440, 0, 0)
    000
    MorphoBank Curator
    Full membership
    0040000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M1691' (34 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [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


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views38512
    Project overview3830
    Matrix views2512Matrix landing page (2271 views); Labidolemur cranial (241 views);
    Taxon list17845
    Specimen list2812
    Media views8823M109740 (731 views); Media search (5037 views); M109739 (686 views); M109728 (818 views); M109738 (780 views); M109737 (771 views);
    Views for media list1585
    Bibliography1102
    Documents list3




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project366
    Matrix downloads40Labidolemur cranial (40 downloads);
    Project downloads325
    Media downloads1M109728 (1 download);