. Elements of geology : a text-book for colleges and for the general reader. Geology. 534: CENOZOIC ERA—AGE OF MAMMALS. ants. Their feet were provided each with five toes (Fig. 911), and the brain was proportionally smaller than in any other land mammal. Another extraordinary group of animals discovered by Marsh in the Eocene beds has been placed by him in a new order called Tillodontia (Fig. 914). These animals combine the head and claws of a bear with the incisors of a Rodent and the general characters of Ungulates. The order must be regarded, therefore, as a remarkable generalized type. We
. Elements of geology : a text-book for colleges and for the general reader. Geology. 534: CENOZOIC ERA—AGE OF MAMMALS. ants. Their feet were provided each with five toes (Fig. 911), and the brain was proportionally smaller than in any other land mammal. Another extraordinary group of animals discovered by Marsh in the Eocene beds has been placed by him in a new order called Tillodontia (Fig. 914). These animals combine the head and claws of a bear with the incisors of a Rodent and the general characters of Ungulates. The order must be regarded, therefore, as a remarkable generalized type. We have seen the earliest in the line of descent of the horse family —Eoliippus—in the Lower Eocene Wahsatch beds. In the Middle. Fig. 913.—Limnohyus (Palaeosyops) (after Leidy). Eocene Bridger beds we find the next in the series—the Orohippus (mountain-horse). This was of similar size; but already the fifth. 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 LeConte, Joseph, 1823-1901. New York : D. Appleton and Co.
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