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  1. The geological history and evolution of the horse / by Elmer S. Riggs, Assoc. Curator of Paleontology.
    By: Riggs, Elmer S., - Field Museum of Natural History.
    Publication info: Chicago :Field Museum of Natural History,1932.
    Contributed by: Field Museum Library
    Subjects: Evolutie  Evolution  Horses  Horses, Fossil  Paarden (dieren)  
    BHL Collections: Field Museum Library
    View Book