Question

During which epoch was the golden age of mammals

A. Eocene
B. Miocene
C. Paleocene
D. Pleistocene

Answer 1

c

Explanation: what google told me-

66 million to 56 million years ago

The Paleocene epoch lasted from 66 million to 56 million years ago. Modern placental mammals originated during this time.

Answer 2

Paleogene Period. The Paleogene spans from the extinction of non-avian dinosaurs, 66 million years ago, to the dawn of the Neogene, 23.03 million years ago. It features three epochs: the Paleocene, Eocene and Oligocene.