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  1. By: Auffenberg, Walter,
    Publication info: New York, N.Y American Museum of Natural History [1962]
    Holding Institution: American Museum of Natural History Library
    Subjects: 56.81,3(1181:78.8)  Colorado  Oligocene  Paleontology  Reptiles, Fossil  Stylemys amphithorax  Testudo amphithorax  Turtles, Fossil  Weld County