Xiamaling (IMAGE) University of Southern Denmark Caption The Xiamaling Formation in China, which contains fossilised algae from primeval times. Credit © Don E. Canfield/University of Southern Denmark Usage Restrictions w credit 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.