Outcrop photo with hammer (IMAGE) Geological Society of America Caption Outcrop photos are taken T.D. Frank and are from Frazer Beach, New South Wales, Australia. The end Permian extinction and disappearance of Glossopteris flora occurs at the top of the coal (black layer). Credit T.D. Frank Usage Restrictions Credit T.D. Frank 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.