图1 (IMAGE) Science China Press Caption 晚三叠世天桥岭植物群分布及地层特征. (a) 天桥岭植物群化石分布及同位素测年样品位置平面图; (b) 大兴沟群岩性剖面及天桥岭植物群化石分布综合柱状图 Credit ©《中国科学》杂志社 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.