Allosaurus was a large theropod dinosaurs that roamed the Earth. It was a top predator who preyed upon large herbivores which included ornithopods, sauropods and stegosaurids. Allosaurus was bipedal, walking upright on two massive hind legs and had two small forelimbs. Its humongous skull was filled with rows of sharp teeth which it used to tear flesh from its prey. It had a pair of horns above and in front of its eyes probably to protect it from the sun.
Did you know that the bones of the Allosaurus are the most complete of all the dinosaurs? In 1991 paleontologists found a nearly complete skeleton of one in Wyoming. They nicknamed it “Big Al.”
Allosaurus lived 155 millions years ago during the Jurassic period.