Dinosaur teeth discovered by a now retired quarryman have revealed a community of prehistoric predators that lived around 135 million years ago in an "exciting" discovery. Paleontologists examined ...

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

Studying the scratches and wear patterns on teeth reveals vital information on diet and feeding. Scientists can deduce a dinosaur's diet from the shape of its teeth. Analysis under a microscope may ...