It was native to western North America and Canada. Also, Tyrannosaurus rex or T-Rex (tyrant lizard the king) is the most well-known species of Tyrannosaurus. It represents a group of large theropods. Tyrannosaurus is another genus of bipedal, carnivorous dinosaur that lived during the late Cretaceous period, 68 to 66 Mya. Tyrannosaurus – Definition, Characteristics, Behavior They tended to slash the prey and waited for it to bleed out. Allosauruses were not aggressive towards each other. Ornithopods, stegosaurids, and sauropods were other potential prey. This might be due to their corporative social behavior. Their body was balanced by their long, heavy, and muscular tail.įurthermore, Allosaurus was on top of the food chains at that period and it could prey on large herbivorous dinosaurs. Also, it had powerful hindlimbs that are much larger than their forelimbs. It had a large skull with short, sharp, and laterally flattened teeth, which are knife-like and backward slanted. It was native to North America, Europe, and Portugal.

– Comparison of Key Differences Key TermsĪllosaurus, Bipeds, Carnivores, Forelimb, Saurischians, TyrannosaurusĪllosaurus – Definition, Characteristics, BehaviorĪllosaurus is a genus of bipedal, carnivorous, tetrapod dinosaur that lived in the late Jurassic period, 155-150 Mya. What is the Difference Between Allosaurus and Tyrannosaurus What are the Similarities Between Allosaurus and TyrannosaurusĤ. Allosaurus was native to North America, Europe, and Portugal while Tyrannosaurus was native to North America and Canada. Furthermore, Tyrannosaurus is comparatively bigger than Allosaurus.Īllosaurus (different lizard) and Tyrannosaurus (tyrant lizard) are two extinct genera of bipedal, carnivorous reptiles that belong to the clade Dinosauria. The main difference between Allosaurus and Tyrannosaurus is that Allosaurus lived during the late Jurassic period in 155 to 150 Mya whereas Tyrannosaurus lived during the Maastrichtian age of the upper Cretaceous Period 68 to 66 Mya.

Allosaurus vs t rex