Abstract
VERY nearly a year ago Prof. O. C. Marsh, of Yale College, announced the discovery of a new order of Mammalia, the Dinocerata, huge elephantine forms, with three pairs of horns and large canine teeth, from the Eocene deposits of the country to the east of the Rocky Mountains, including the states of Dakota, Nebraska, Wyoming and the “Bad Lands” of Colorado, which was described and one of its species figured in this journal at the time (NATURE, vol. vii. p. 366). This same able zoologist has the opportunity of adding still another unexpected group of animals, this time from the Miocene beds of the same district, which, though Ungulate and almost certainly Perissodactylate, are very different from any known form.
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The “Brontotheridæ,” A New Family of Fossil Mammals . Nature 9, 227 (1874). https://doi.org/10.1038/009227a0
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DOI: https://doi.org/10.1038/009227a0