Fengshanian Stage

例句：

1. 1.The Fengshanian Stage is a crucial period in the evolution of life on Earth.
   风山阶段是地球上生命演化的关键时期。
2. 2.The Fengshanian Stage saw the emergence of many new species.
   风山阶段见证了许多新物种的出现。
3. 3.The Fengshanian Stage was characterized by extreme temperatures and changes in climate.
   风山阶段以极端温度和气候变化为特征。