Allosaurus vs t-rex
Where did allosaurus live
Allosaurus fragilis size!
Allosaurus
Allosaurus was a large theropoddinosaur from the Jurassic period, a predatorycarnivore.
Allosaurus averaged 8.5 metres (28 ft) in length, though some remains suggest it could reach over 12 meters (39 ft).
Its three-fingered forelimbs were smaller than its large hind legs, and the body was balanced by a long, heavy tail.[1] It weighed 2.3 tons.
Allosaurus weight in kg
It is the most common large predator found in the Morrison Formation of Colorado. This formation was laid down 155 to 145 million years ago, in the Jurassic.
Allosaurus was at the top of the food chain. It probably preyed on large herbivorous dinosaurs and perhaps even other predators, including Ceratosaurus and Marshosaurus.
Potential prey included ornithopods, stegosaurs, and sauropods.
Allosaurus dietSome paleontologists think Allosaurus had cooperative behavior, and hunted in packs. Others believe they may have been aggressive toward each other.
Groups have been found together in the fossil record. This might be evidence of pack behavior, or just the result of lone individuals feeding on the