Abstract
LAST year the American Museum of Natural History established a department of mammalian palæontology for the purpose of securing and exhibiting collections from all the tertiary horizons of the west. Dr. J. L. Wortman, well known by his discoveries while associated with Prof. Cope, was put at the head of the field work, and under his direction explorations have already been made in the Laramie or Upper Cretaceous, and in three of the great divisions of the tertiary, namely, the Wasatch, the Puerco, and the Lower Miocene or White River.
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OSBORN, H. Protoceras, the New Artiodactyle. Nature 47, 321–322 (1893). https://doi.org/10.1038/047321a0
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DOI: https://doi.org/10.1038/047321a0