“ The skull as it lay in the rock measured more than six feet in length, four feet in width, and the horn-cores about three feet in height. These dimensions far surpass any of the Dinosauria hitherto known, and indicate to some extent the wonderful development these reptiles attained before their extinction at the close of the Cretaceous. ”

“ The fore limbs are especially massive and powerful, and are much like those of the Jurassic Stegosaurus. There were five well-developed digits in the manus, and their terminal phalanges are more narrow than usual in this group. The ribs are T-shaped in transverse section, and thus especially adapted to support the armor over them. The caudal vertebræ are more elongate than those of Stegosaurus, and the middle caudal have a median groove on the lower surface of the centrum.
The animal when alive was about thirty feet in length. The known remains are from the middle Cretaceous of Wyoming. ”

“ The animal described by the writer as Ceratops horridus [2] possesses some remarkable characters not before known in the Dinosauria. In addition to the pair of massive horn-cores on the top of the skull, there is a third horn-core on the nose. ”