这就是二叠纪以及整个古生代的终结。

This was the end of the Permian period, and of the era of life called the Paleozoic.

youdao

我的教授研究古生代的植物群。

My professor studies flora of the Palaeozoic Era.

youdao

博格达山属于晚古生代的陆间裂谷。

Bogda was a rift basin in late Palaeozonic.

youdao