The tyrannosaur teeth in the Ashdown Brickworks turned out to be fortuitous find, as researchers say the dinosaur group hadn't previously been identified in sediments of this age and region.

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

Tyrannosaurus rex was one of the most ferocious predators to ever walk the Earth. With a massive body, sharp teeth, and jaws so powerful they could crush a car, this famous carnivore dominated the ...

Jack Tseng of UC Berkeley measuring punctures produced in a cow bone by a metal cast of a tyrannosaur tooth. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

The 75-million-year-old skull of a juvenile Daspletosaurus—a smaller cousin of Tyrannosaurus rex—found in an Alberta quarry in 1994 carries tooth marks of fellow tyrannosaurs that were inflicted both ...