Earth Geology Geologic Time Scale Cenozoic Era 

Cenozoic Era

The Cenozoic ("modern life") Era has lasted from 65 million years ago until the present. The Cenozoic is the age of the mammals. It consists of two periods:

the Tertiary - 65 to 1.8 million years ago and,

the Quaternary - 108 million years ago to now. 

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