Explanation of Cenozoic era

The fifth generation of the new generation is also the latest generation. From 70 million years ago to the present, it can be divided into Tertiary and Quaternary. During this period, there was a strong orogeny in the crust, reptiles disappeared in Mesozoic, mammals flourished, organisms reached a highly developed stage, close to modern times, and humans appeared in the later period.

Word decomposition

The new interpretation is new, new and experienced; Initial and unused, as opposed to "old" and "old": new life. Fresh. Upstart. New green. New stars and newcomers. News. Metabolism. Nature has become better, contrary to "old": turn over a new leaf. Not long ago, just now: the new generation explained that it was born in the world. Biography of Jiang Jiao in Old Tang Dynasty: "My generation of literati began to serve their relatives, served the monarch in the middle, and finally stood on their own feet. This is also a fact. "