Allosaurus was the most common large carnivore of the Late Jurassic in North America. It was a smaller predecessor of the Cretaceous Tyrannosaurus. Strong forelimbs with sharp claws, powerful hind ...

An Allosaurus known as “Big Al ... only the tip of its tail is missing. Some fossils found in the rib cage of the predator, including a tooth of a lungfish and a small bone of a herbivorous ...

The discovery comes from a handful of specimens including an extraordinarily complete and well-preserved fossil skeleton excavated from a site centered around an Allosaurus nest in northern ...

What can you tell about a dinosaur’s behavior by examining fossils of its teeth? Just how many teeth did a T-Rex have? How did Stegosaurus protect itself from Allosaurus? Why did Diplodocus swallow ...

The Allosaurus and Stegosaurus fossils represent two of the most recognisable dinosaurs from the Late Jurassic era, approximately 150 million years ago. The Allosaurus, often seen as a precursor ...