哺乳动物时代

因为新生代出现大量的像我们人类一样的热血动物，所以这个时代也称为哺乳动物时代。

Because the Cenozoic saw the expansion of warm-blooded creatures like ourselves , it is also termed the age of mammals .

辽东半岛第四纪哺乳动物群时代与特征

Discussion on the Age and Characteristics of the Mammal Crowd Lived at the Quaternary period in the Peninsula Eastern Liaoning

最新的一个代叫做新生代，它是从距今6500万年的时候开始的，这个时期是哺乳动物的时代。

The newest era is called Cenozoic beginning at 65 million years ago . It is the age of Mammals .

辽宁西部第四纪哺乳动物及其地层时代

Quaternary mammals in western Liaoning and the age of the fossil-bearing strata

甘肃古近纪哺乳动物化石及其时代

Ice age Paleogene period mammal fossils and its time in Gansu Province