Fig. 3 (IMAGE) Science China Press Caption Generalized Devonian carbon and strontium isotope stratigraphy, event stratigraphy in China. Credit ©Science China Press Usage Restrictions Use with 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.