Fig 2 (IMAGE) University of Bristol Caption Dimetrodon, an early predatory synapsid from the early Permian (~298-272 Million years ago). (Display at the Royal Tyrell Museum, Canada). Credit Suresh A. Singh. 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.