Rocks from the Guizhou region (IMAGE) McGill University Caption Rocks from the Guizhou region, deposited at the bottom of an ancient ocean during the Permian-Triassic transition and containing the newly discovered fossils (Gujiao section). / Roches de la région de Guizhou, déposées au fond d’un ancien océan durant la transition Permien-Trias et qui contiennent les fossils nouvellement découverts (Gujiao section). Credit Xu Dai Usage Restrictions Credit image 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.