Melanie Hopkins with fossil (IMAGE) American Museum of Natural History Caption Coauthor Melanie Hopkins with a well-preserved fossil of Triarthrus eatoni from upstate New York. Credit Daniel Kim/ ©AMNH Usage Restrictions Can be used with appropriate credit 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.