Tomography (IMAGE) European Synchrotron Radiation Facility Caption This synchrotron holotomography represents a virtual longitudinal section through the 100 million-year-old fossil ostracod Harbinia micropapillosa. The left arrow shows the preserved inner part of the esophagus, while the right arrow points to the two seminal receptacles, where this female stored the giant sperm cells after mating. Credit Renate Matzke-Karasz Usage Restrictions None 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.