Mayfly with Springtail in Amber (IMAGE) University of Manchester Caption The image shows a mayfly dating from 16 million-years-ago encased in amber. A springtail be seen resting on its back. Credit Dr Dave Penney, The University of Manchester Usage Restrictions Please credit Dr Dave Penney at The University of Manchester 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.