Albertosaurus

Albertosaurus was a Tyrannosaurid dinosaur that lived around 80 million years ago.

In Jurassic Park
It is not seen in the movies, but it may be seen in the video game, Jurassic Park: Operation Genesis as a three-star small carnivore, from the Judith River Group Site A. More lightly built than it's cousins such as Tyrannosaurus, it forages alone for smaller prey but will gang up to bring down large herbivores. Even so, they don't like attacking larger dinosaurs such as Brachiosaurus or Camarasaurus.