What Is Divided into Epoch

Eons > Eras > Periods > Epochs The Tertiary and Quaternary Periods of the Cenozoic Era are further divided into Time intervals called Epochs. … Currently, the Pleistocene and Holocene Epochs are the only two Epochs identified in the Quaternary Period.

What was special about the Cenozoic Era?

The Cenozoic era is also known as the Age of Mammals because the extinction of many groups of giant mammals, allowing smaller species to thrive and diversify because their predators no longer existed. … The beginning of the Paleogene period was a time for the mammals that survived from the Cretaceous period.

Why is Cenozoic era known as the era of new life?

This era is the era of new life. Mammals may not have risen from the oceans at this time, but they did evolve into a diverse collection of terrestrial, marine, and avian forms. The major geological happenings of the Cenozoic Era are that the continents moved into their current positions.