A conifer-dominated Early Triassic flora from Southwest China

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2018,（22）
• 页码范围: 1462-1463
• 页数: 2页
• 语种: 英文

摘要

The end-Permian mass extinction is the greatest biotic crisis in Earth history.Most marine species (＞95％) and many land tetrapods (＞70％) disappeared within a very short time interval [1].Previous studies of this dramatic event mainly have focused on evolutionary patterns in animal groups prior to the extinction,and on their recovery during the Early Triassic [2].Although some macroevolutionary scenarios have been postulated for the changes in land-plant vegetation through the Permian and Triassic,the severity of extinction and,the timing and radiation pattern in the recovery of plant groups during the Early Triassic are still debated [3].Hitherto there has been little information about plant life in the wake of the end-Permian extinction event,mainly because of the scarcity of records of earliest Triassic plant-bearing deposits worldwide.Here we report on an Early Triassic flora from Southwest China that provides a rare glimpse into the post-extinction vegetation in the (sub)tropics of Cathaysia.