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Human Skeletal Remains
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Douglas H. Ubelaker
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Principles of Paleontology
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Michael Foote, Arnold I. Miller
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Earth Before the Dinosaurs
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Sébastien Steyer
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Geology of North America
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Jules Marcou
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The Proterozoic Biosphere
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J. William Schopf, Cornelis Klein
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The Beginning of the Age of Mammals
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Kenneth D. Rose
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Bulletin of the American Museum of Natural History
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American Museum of Natural History
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Frozen Fauna of the Mammoth Steppe
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R. Dale Guthrie
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De Re Metallica
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Georg Agricola
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American Beginnings
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Frederick Hadleigh West, Constance F. West
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