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  1. By: Gawne, Constance Elaine
    Publication info: New York, N.Y, American Museum of Natural History, [1968]
    Holding Institution: American Museum of Natural History Library
    Subjects: 56.9,33(1181:78)  Hedgehogs, Fossil  Mammals, Fossil  Nebraska  Oligocene  Paleontology  Proterix bicuspis  Proterix loomisi  South Dakota