(IMAGE) University of Bonn Caption Martin Sander and Michael Hautmann look over the discovery layers on the southern slope of Schesaplana, on the Graubünden/Vorarlberg border. Credit © Jelle Heijne/University of Bonn Usage Restrictions Please use this picture only in connection with the press release. License Original 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.