<I>Hastocularis argus</I> (IMAGE) American Museum of Natural History Caption This image was made by a high-resolution x-ray scan of the newly described 305-million-year-old harvestman fossil (Hastocularis argus). Credit ©Muséum national d'Histoire naturelle Usage Restrictions Can be used with appropriate credit 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.