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 ...

“I can see the optic nerve that gave vision,” he says ... Italy, reassemble an Allosaurus unearthed in Wyoming. The specimen later sold at auction in Paris for $1.4 million.