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  1. A new late Paleocene Phenacodont (Mammalia: Condylarthra) from western Colorado
    By: Patterson, B - West, R M
    Type: Article
    In: Breviora
    Volume: 403
    Date: 1973
    Page Range: 1--7
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  2. Protogonia subquadrata Cope, 1881, (Mammalia): proposed suppression of generic and specific names under the plenary powers. Z.N. (S.) 1890
    By: West, R M - Baird, D
    Type: Article
    In: Bull. Zool. Nom.
    Volume: 26
    Date: 1970
    Page Range: 230--232
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