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  1. By: Wetmore, Alexander, - Shufeldt, Robert Wilson - Granger, Walter,
    Publication info: New York City, The American Museum of Natural History, [1933]
    Holding Institution: American Museum of Natural History Library
    Subjects: 56.89,7P  Aquila ferox  Aquila lydekkeri  Birds, Fossil  Eocene  Mammals, Fossil  Minerva antiqua  Owls, Fossil  Paleontology  Protostrix lydekkeri  Wyoming