中生代

Coal-bearing strata belong to Middle-Lower Jurassic Series Jiangcang Formation,coal-forming environment was Mesozoic faulted basin fluviolacustrine,bog facies.

含煤地层为下侏罗统江仓组,成煤环境属断陷盆地内河湖、沉积。

Although its name is Greek for "fish lizard," Ichthyosaurus was no fish—it was a reptile that swam the Mesozoic oceans.

虽然它的名字在希腊为“鱼蜥蜴”，鱼龙不是鱼――这是一个爬虫类动物的泳手在的海洋。

Baiyinchagan depression is part of downwarping faulted rift basin developed on XingmengHercynian multicycle and collision fold basement in late Mesozoic.

白音查干凹陷为兴蒙海西期多旋回、软碰撞褶皱基底上晚发育起来的断-坳型裂谷盆地的次级构造单元。