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.

"The teeth and jaws of the ornithopods changed ... guts that can more effectively release the nutrients inside plants. Different dinosaurs took different approaches to herbivory.

GEORGE, Utah — Inside a small lab in St ... The excavation has already yielded groundbreaking finds, including dinosaur teeth and tiny freshwater shark teeth belonging to a previously ...