LIFE SCIENCE

Detailed explanation-1: -Cenozoic Era, third of the major eras of Earth’s history, beginning about 66 million years ago and extending to the present.

Detailed explanation-2: -The Cenozoic Era, or era of “modern life, ‘’ began about 65 million years ago and continues to the present. The Cenozoic is called the age of mammals because of the diversification and importance of mammals during this era.

Detailed explanation-3: -Cenozoic ("Recent Life") Era The Cenozoic period began about 65 million years ago with the extinction of the dinosaurs and continues through the present.