Ceratosaurus

Ceratosaurus was a predatorial Theropod Dinosaur that lived during the late Jurassic Period in the American West. It sported a nose crest that may have glown a bright color during mating season to attract members of the opposite sex.

In Jurassic Park
Ceratosaurus was in the third Jurassic Park movie, making a brief appearance on the river bank, sniffing the dung-covered main characters, then walking away in disgust. Its close relative, Proceratosaurus, was listed on a map in the original movie, but never seen in person.

In Operation Genesis
Ceratosaurus is also available as a two-star small carnivore, appearing as it does in the movie, and hunting larger herbivores in packs. They are, however, like their movie counterparts, were smaller than they actually were when they existed in the real world