Mounting the fossils (IMAGE) DOE/Idaho National Laboratory Caption Arvid Aase, paleontologist and museum curator at Fossil Butte National Monument, mounts one of the fossils in the X-ray microscope for imaging. Credit Idaho National Laboratory Usage Restrictions N/A 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.