Fig 3 (IMAGE) University of Bristol Caption Rhaetian (205 million years ago) food web of the Bristol archipelago containing Pachystropheus rhaeticus. The arrows indicate who eats who - red and black means inferred, and blue arrows are based on based upon ecology and fossil associations observed during this study. Credit Jacob Quinn Usage Restrictions once with release 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.