Teeth from the Upper Jaw of a Hadrosaur (image) University of Leicester Caption These are teeth from the upper jaw of a hadrosaur, Edmontosaurus. The specimen was molded and coated with gold for examination using a Scanning Electron Microscope to give high power magnification of the microscopic scratches. Credit Vince Williams, University of Leicester Usage Restrictions Must be used with credit. 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.