<i>Changchunsaurus</i> Wavy Enamel (IMAGE) University of Toronto Caption The wavy appearance of the enamel of Changchunsaurus in thin section and under cross-polarized light. 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.