Fossil (IMAGE) Science China Press Caption 1, 3, 5, 7: This is the micro-morphology of fossil <i>Quercus delavayi</i> complex. 2, 4, 6, 8 Micro-morphology of extant <i>Q. delavayi</i>. Credit ©Science China Press Usage Restrictions None 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.