from 280 million to 230 million years ago; reptiles
造句
用作形容詞(adj.)
Permian bioclastic limestone and bioherm are the most favorable reservoirs. 二疊系生屑灰巖和生物礁為最有利的儲層。
The clastic rocks in Permian System at the southeast area of Ordos Basin contain tremendous potential in exploration of natural gas. 鄂爾多斯盆地東南部二疊系碎屑巖具有巨大的天然氣勘探潛力。
用作名詞(n.)
Cathaysian Flora extincted totally at the end of Permian. 華夏植物群在二疊紀末絕滅。
During the Permian, the continents joined to form a single supercontinent, Pangaea. 二疊紀時期，各大陸組合成了一個單一的超級大陸板塊盤古大陸。