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Keywords from Image Description:
Oligocene Jay Matternes. Restoration of Oligocene fauna of North America on mural made for the US governmentowned Smithsonian Museum Includes Trigonias Perchoerus Mesohippus Archaeotherium Protoceras Aepinacodon Hesperocyon Hyracodon Scan from the TimeLife book North America Creator Jay Matternes PDUSGov Badlands National Park Protoceras