Ceratosaurus is a carnivorous dinosaur, Ceratosaurus has been found in the Morrison Formation of Utah, Colorado, Wyoming, and Oklahoma. One of the more complete skeletons of Ceratosaurus is housed at the NHMU. This specimen was found at the Cleveland-Lloyd Dinosaur Quarry, Ceratosaurus was discovered in 1883 or 1884 by O.C Marsh, Ceratosaurus could run 20-30mph and was 6-8 meters long and 2 meters tall, Ceratosaurus lived 161 - 146 million years ago in late Jurassic, Ceratosaurus was a theropod.