Answer: Option A : A The tertiary period of the Cenozoic era is further subdivided into five epochs, in the order- Paleocene (67 - 55.5 mya), Eocene (55.5 - 33.7 mya), Oligocene (33.7 - 23.8 mya), Miocene (23.8 - 5.3 mya) and Pliocene (5.3 - 1.8 mya) epoch.
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