Dinosaur teeth discovered by a now retired quarryman ... we are still finding more dinosaurs. "There seems to be no slowing down of the average of one new species a week, and indeed, as we have ...

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

A figure from the study showing teeth from a megaraptor dinosaur from various view points. The black tooth preserves most of the tooth crow. The tan tooth is missing the crown apex and base.