Page 152 - Science Course 3 (Book 2)

Mo11-L7a: Major Events During the Cenozoic Era

Let’s Begin

The Cenozoic era spans the time from the end of

the Cretaceous period, 65 mya, to present day.

Quat Pleistocene

Pliocene
Cenozoic Tertiary Neogene Oligocene Miocene Pliocene Pleistocene

Milocene

Paleogene
Epoch
Epoch
Epoch
Eocene
Pleocene

Geologists divide the Cenozoic Era into two periods—
the Tertiary period and the Quaternary period.

Quaternary Period 2.6 million years ago –
present

Holocene Epoch

These periods are further subdivided into epochs.

The most recent epoch, the Holocene epoch, began
10,000 years ago.

Earth’s continents continued to move apart during
the Cenozoic era, and the Atlantic Ocean continued
to widen.
Tertiary Period 65.5 – 2.6 million years ago

Paleocene Eocene Oligocene
Epoch Epoch Epoch

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