Living in what we know today as Canada during the Cretaceous Period was Albertosaurus, a smaller and slender cousin of Dinosaurs such as Tyrannosaurus and Tarbosaurus. Much like these, Albertosaurus was an agile theropod, with long legs and short arms sporting two fingers. Albertosaurus is commonly known for its pointy frontwards facing horns, of which other Tyrannosaurids may have possessed in different shapes and sizes. Albertosaurus also lived with other Dinosaurs such as Pachyrhinosaurus and Troodon.

Albertosaurus is first seen as an inhabitant of Isla Sorna in 1998, being one of Site B’s many cloned Dinosaurs by Ingen for the construction of Jurassic Park and research. Measuring nearly 9 meters in length, it was a fairly sized medium theropod that lived on its own, a loner. It is known that at least 3 individuals lived on Sorna by the time of 1998, as reported by a survivor that got stranded on the Island during that time.

Albertosaurus sports a mixture of brown and white tones over its body, a white and light cream underbelly, followed by a yellow tone that gradually becomes more prominent on its back. Alongside cocoa colored stripes, spots and mottling all over its body, helping to efficiently camouflage itself in Redwood Forests.