"Ladies and gentlemen, we are happy to announce the arrival of our newest addition to our park. The fearsome Cretaceous carnivore, Albertosaurus, is now on display. Please enjoy." - Jane Powers

3.3 meters (11 feet)

3 tons


9.1 meters (30 feet)



Favorite prey


Time Period

Late Cretaceous 78-68

Dig Site

Judith River Group A

Security Requirements



3 stars

Albertosaurus is a small, three-star carnivore, found in the dig site Judith River Group A. It is a smaller, and earlier cousin of the larger, and more famous Tyrannosaurus rex.

Albertosaurus can hunt by itself, but will prefer to hunt in packs, usually as pairs. They are a very deadly predator using speed and agility with a strong bite to take down a variety of prey. Their favourite prey is known to be Parasaurolophus or other hadrosaurs (which, with the exception of Edmontosaurus, are often too fast for them), smaller herbivores like Pachycephalosaurus, and sometimes ceratopsians like Styracosaurus. They will also hunt other members of their kind if they are weak or sick.

Albertosaurus seems to be one of the more passive carnivores and will rarely try to break out, despite being the most powerful small carnivore. Never the less, they are still dangerous to visitors, and must never be allowed out of their exhibits.

Trivia Edit

  • It is the largest and most powerful small carnivore in the game.
  • Despite this, it is the only carnivore that Dinopedia suggests low security for.
  • It will attack ceratosaurus and even acrocanthosaurus and allosaurus if hungry enough, however under normal circumstances allosaurus and acrocanthosaurus will easily kill it.

In real life Edit

Albertosaurus was a member of the tyrannosaur family and while smaller than some of its larger relatives, was still a relatively large animal. It lived in Canada, Alaska and New Mexico, with the first ever fossils being unearthed in the Red Deer Formation in Alberta in 1884, the first dinosaur discovered in Canada.

Albertosaurus was one of the apex predators of its local ecosystems, along with the much heavier Daspletosaurus. Albertosaurus in contrast was more elegant and built for speed. It is presumed that the two tyrannosaurids had niches; with Daspletosaurus tackling larger slower prey, while Albertosaurus mainly chased down hadrosaurs. The discovery of several Albertosaurus skeletons together suggest this species hunted in packs.