. The age of mammals in Europe, Asia and North America. Mammals, Fossil; Paleontology. ROCKY MOUNTAIN BASIN DEPOSITS GREAT PLAINS DEPOSITS ZONES (jlyfjtoOicriuni. FORT UNION INTRODUCTION OF ANCESTORS (MONT.) 2'^Faunal Period ARCHAIC MAMMALS ONLY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Osborn, Henry Fairfield, 1857-1935. New York, The Macmillan Company

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea