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The age of mammals in Europe, Asia and North America (1910) (17324803323)


The age of mammals in Europe, Asia and North America (1910) (17324803323)



Title: The age of mammals in Europe, Asia and North America
Identifier: ageofmammalsineu00osbo (find matches)
Year: 1910 (1910s)
Authors: Osborn, Henry Fairfield, 1857-1935
Subjects: Mammals, Fossil; Paleontology
Publisher: New York, The Macmillan Company
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

Text Appearing Before Image:
PLEISTOCENE OF EUROPE, NORTH AFRICA, AND NORTH AMERICA 441 overlapping in time and in range, will probably be found to be characteristic of distinct epochs and habitats, as follows: 3. The northern mammoth (Elephas primigenius), ranging from Alaska south to the latitude of Washington. Late Pleistocene, or Zone III. 2. The Columbian mammoth (Elephas columbi), ranging from the southerly range of E. primigenius to the City of Mexico. Mid-Pleistocene, or Zone II. 1. The imperial mammoth (Elephas imperator), ranging from Nebraska to the City of Mexico. Early Pleistocene, or Zone I and (?) II.
Text Appearing After Image:
Fig. 191. — Middle Miocene mastodon (Trilophodon productus) beside Upper Pliocene or Lower Pleistocene elephant (E. imperator). Models by Charles R. Knight in the American Museum of Natural History. The imperial elephant is an early arrival. It is by far the largest of these animals, attaining a height of over thirteen feet, and more definitely distinguished by the enormous size of its molar teeth, in which the enamel plates are relatively iew (seventeen), widely separated, and surrounded by a heavy mass of cement. The Columbian elephant is an animal of lesser size, attaining a height of eleven feet, with twenty-one to twenty-two cross ridges in its upper grinders.





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