The dinosaurian genus Coelurus

The first description of fossils that would later be named Coelophysis. Here they are assigned to the dinosaur Coelurus.

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This genus was described by Marsh, in 1871, from material obtained in the Jurassic deposit of Wyoming Territory. Characteristic bones not distinguishable as to genus from those described by Marsh are in my collection from New Mexico, probably from beds of Triassic age. They consist of nearly all parts of the skeleton, excepting jaws and teeth, and but little of the skull is determinable. The material is much more complete than that described by Marsh.