Orodromeus was a genus of hypsilophodont dinosaur from Late Cretaceous Montana (North America).
||Wikipedia has a more detailed and comprehensive article on Orodromeus
Orodromeus doesn't appear in the original novels or movies. It only makes a cameo appearance in the The Lost World video game.
Jurassic Park inspired games
In the video game The Lost World: Jurassic Park. It lives at the edges of Isla Sorna along with Euoplocephalus and Compsognathus.
Together they form an ecological system called Habitat A. Orodromeus is an enemy in the Compsognathus level in the High Ridge area. The coloration is a reddish brown.