Abstract
DR. W. K. GREGORY, of the American Museum of Natural History, New York, has contributed to the Bulletin of that institution a series of studies on the “Evolution of the Primates.” In part i. he reviews the theory of cusp-formation which was first formulated by Cope and afterwards elaborated and perfected by Osborn, and contends that all later discoveries have justified their supposition that the upper molars of primates (and also of all typical placental mammals) are modifications of a common tritubercular type, while the lower molars are modifications of a “tuberculo-sectorial” form. In his opinion the similarity of the molar type in all forms of man and anthropoid, both living and extinct, is a matter beyond dispute.
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Evolution of the Primates. Nature 100, 195–196 (1917). https://doi.org/10.1038/100195b0
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DOI: https://doi.org/10.1038/100195b0