二叠纪 Permian
（重定向自Lopingian）
二叠纪（Permian）是约2.9～2.5亿年前古生代的最后一个地质时代，在石炭纪、三叠纪之间。定义二叠纪的岩石层是比较分明的，但开始、结束的精确年代却有争议。其不精确度可达数百万年。以往，二叠纪为二分，目前二叠纪使用三分法：Cisuralian、Guadalupian、乐平世（Lopingian）。Permian源自俄罗斯的彼尔姆州。中文译为二叠纪一说是在德国的同年代地层的上层是镁质灰岩，下层是红色砂岩之故。
Lopingian
中文百科
英语百科
Permian 二叠纪
（重定向自Lopingian）
The Permian is a geologic period and system which extends from 298.9 to 252.17 million years ago. It is the last period of the Paleozoic, following the Carboniferous and preceding the Triassic of the Mesozoic. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the ancient kingdom of Permia.
- continuous prosperity的意思
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