Albertosaurus

Albertosaurus (name meaning "Alberta lizard") is a genus of tyrannosaurid theropod dinosaur that lived in North America during the Late Cretaceous period. It was an earlier relative of Tyrannosaurus of somewhat comparable proportions, though its build was much more gracile, meaning it would have been lighter.

Facts
Albertosaurus measured up to 30-33 ft (10 m) long, stood about 9-11 ft (3 m) tall at the hips, and weighed as much as 3 tons.

Albertosaurus had a long tail that provided the required balance and it even aided the dinosaur while turning. Albertosaurus preyed on Parasaurolophus, bringing them down by hunting in cooperative packs. However, it had a rivalry with the giant crocodilian Deinosuchus, which was considered to be a top predator of that time period.

Supercroc
A pair of Albertosaurus was seen roaring at a pair of Parasaurolophus and Nigel Marven. As the Parasaurolophus escaped, the Albertosaurus pair concentrated on Nigel. As Nigel powered up his jeep, the pair pursued him. Despite going over 30 mph, the Albertosaurus managed to keep up. Shortly after, they stopped.

A pack of Albertosaurus was later seen confronting a group of Deinosuchus over a Parasaurolophus carcass. After a short fight, the Albertosaurus conceded the carcass to the Deinosuchus.

Errors

 * The hands should be facing inwards, not downwards, since all known theropods have been proven to not have pronated hands as entertainment usually depicts. A pronation would cause the wrists to break.
 * Albertosaurus evolved around 70 million years ago, five million years after the episode was set.
 * Albertosaurus was much slimmer than Tyrannosaurus rex and had a narrower skull. However, in Prehistoric Park, they share the same model.
 * Albertosaurus fossils hail from the Alberta province of Canada, hence the genus name. There is no evidence to suggest they inhabited Texas.