Permian Symbols叠音符号
Permian base二叠系底界
permian strata二叠系地层
permian reservoirs二叠系储层
permian reservoir二叠系储层
permian orogeny二叠纪造山作用
permian series二叠系
permian volcanic二叠系火山岩
permian period二叠纪;二迭纪
The end-Permian Mass Extinction is the greatest and the most influencing event on biotic evolutionary history. Jin et al.
二叠纪末期爆发的生物集群绝灭是生物演化史上规模最大、影响最深远的事件。
参考来源 - 广西二叠纪深海硅质岩系中GuadalupianADJ（形容词） of, denoting, or formed in the last period of the Palaeozoic era, between the Carboniferous and Triassic periods, which lasted for 60000000 years 二叠纪的
N（名词） the Permian period or rock system 二叠纪; 二叠统