APUSH with Mr. Johnson - Home

The Cenozoic Era currently has two ratified Periods – the Neogene (Holocene, Pleistocene, Pliocene, and Miocene epochs, or approximately 0.0 to 23.0 Ma) and the Paleogene (Oligocene, Eocene, and Paleocene epochs, or approximately 23.0 to 65.5 Ma). ................
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