Coelophysis was a carnivorous theropod that lived during the late Triassic (203-198 MYA), in what is now known as the southwestern United States. They grew up to 3 meters in size. On display at the Sam Noble Oklahoma Museum of Natural History in Norman, OK.
For more information on the paleobiology of Coelophysis bauri, [consult the comprehensive 2009 paper by Rinehart et al.](http://econtent.unm.edu/cdm/ref/collection/bulletins/id/1285)