Coelophysis was an ostrich-like, meat-eating dinosaur that inhabitated southwestern New York State approximately 200 million years ago. At that time the region was semi-tropical and hosted a bizarre array of amphibians, reptiles, and plants while experiencing unrest in the form of basin settling, earthquakes, faults, and intrusions and outpourings of lava. Presented in this document are desciptions of (1) the geologic history of New York before and after Coelophysis; (2) the morphology, behavior, and habitat of the dinosaur; and (3) the rocks in the New York basin during Coelophysis' time. A bibliography and list of some museums where dinosaur fossils and/or restorations may be seen are also provided. (Author/JN)