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 ...

Microscopic view of extracted soft tissues from the bones of one of the dinosaur specimens (Allosaurus ... the characteristic brown color of the fossil extracellular matrix which holds bone ...

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 ...

Feb 12 (Reuters) - Scientists have unearthed in southeastern China the fossil of a quail-sized bird ... There was a bevy of birds flying overhead of Allosaurus and Stegosaurus and Brontosaurus ...