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  1. By: Simpson, George Gaylord, - Briggs, Kenneth. - Granger, Walter, - Thomson, Albert - Bird, Junius Bouton,
    Publication info: New York City, The American Museum of Natural History, [1941]
    Holding Institution: American Museum of Natural History Library
    Subjects: Harding County  Mammals, Fossil  Manitsha tanka  Oligocene  Paleontology  Rodents, Fossil  Slim Buttes  South Dakota