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    New olenelline trilobites from the Northwest Territories, Canada, and the phylogenetic placement of Judomia absita

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    Lieberman_New_Olenelline_Trilobites.pdf (2.492Mb)
    Issue Date
    2011-05-11
    Author
    Gapp, Ian Wesley
    Lieberman, Bruce S.
    Pope, Michael C.
    Dilliard, Kelly A.
    Publisher
    Magnolia Press
    Type
    Article
    Article Version
    Scholarly/refereed, author accepted manuscript
    Published Version
    http://www.mapress.com/zootaxa/2011/2/zt02918p028.pdf
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    Abstract
    The Early Cambrian olenelline trilobites are a diverse clade that have been the subject of several phylogenetic analyses. Here, three new species of Bradyfallotaspis Fritz, 1972 (B. coriae, B. nicolascagei, and B. sekwiensis) and one new species of Nevadia Walcott, 1910 (N. saupeae) are described from the Sekwi Formation of the Mackenzie Mountains, Northwest Territories, Canada. In addition, new specimens potentially referable to Nevadia ovalis were recovered that may expand that species’ geographic range, which was thought to be restricted to Sonora, Mexico. A phylogenetic analysis incorporating several olenelline taxa, including Judomia absita from the Sekwi Formation, is also presented herein. This species has been assigned to various olenelline genera, including Judomia Lermontova, 1951 and Paranevadella Palmer & Repina, 1993. Phylogenetic analysis suggests this species is closely related to Judomia tera Lazarenko, 1960 from Siberia. This phylogenetic relationship provides further support for the hypothesis that a close biogeographic relationship existed between Laurentia and Siberia during the Cambrian.
    Description
    This is the author's accepted manuscript, the published version is available here http://www.mapress.com/zootaxa/2011/f/z02918p028f.pdf
    URI
    http://hdl.handle.net/1808/13651
    Collections
    • Ecology & Evolutionary Biology Scholarly Works [1516]
    Citation
    Lieberman, Bruce S. 2011. “New olenelline trilobites from the Northwest Territories, Canada, and the phylogenetic placement of Judomia absita.” Zootaxa (2918):15-28

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    KU Libraries
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    785-864-8983

    KU Libraries
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    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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