<i>Changchunsaurus</i> Lower Jaw Cross-section (IMAGE) University of Toronto Caption A thin section through a lower jaw of the plant-eating dinosaur Changchunsaurus, showing teeth at different stages of development Credit University of Toronto Mississauga Usage Restrictions credit u of T Mississauga License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.