It was a 30-foot-long plant-eating dinosaur, with a delicate skull and an extremely wide mouth with 500 teeth, replaceable more often than any other genus of dinosaur. It lived during the middle ...

Discovered teeth of (a) spinosaur, (b) tyrannosaur, (c) dromaeosaur, (d) possible tyrannosaur, (e) indeterminate tyrannoraptoran - the group containing tyrannosaurs and dromaeosaurs (Velociraptor ...

With a massive body, sharp teeth, and jaws so powerful they could crush a car, this famous carnivore dominated the forested river valleys in western North America during the late Cretaceous period ...

Lesothosaurus diagnosticus was one of the most primitive and earliest ornithischians, or "bird-hipped" dinosaurs ... such as hip structure and jaws and teeth designed to chew plants, link ...