Question

______ era is popularly known as the age of mammals.

Answer 1

Cenozoic era is popularly known as the age of mammals.

Explanation:

The Cenozoic era, also known as the Age of Mammals, followed the extinction of the dinosaurs and saw the rise and dominance of mammals as the principal land animals. This era includes periods like the Tertiary and Quaternary, during which mammals diversified and became the dominant vertebrates on land.