I.—Prof. E. D. Cope, on a New Type of Perissodactyle Ungulate From the Wasatch Eocene of Wyoming Territory, United States of North America

Abstract

In his last published volume on the Vertebrata of the Territories,1 Prof. Edward D. Cope has figured and described many new and remarkable forms of the Order Ungulata from the Eocene of Wyoming. The most important and interesting among the numerous species described being the genus Phenacodus, of which the nearly entire skeletons of two species have been discovered, namely P. primœvus, represented in our plate (Plate II.) and P. Vortmani.