The Cenozoic ERA is the most recent ERA of geological time, spanning from 66 million years ago to the present day. It is divided into three periods: the Paleogene, the Neogene, and the Quaternary. The Paleogene period is further divided into the Paleocene, EOCENE, and Oligocene epochs. The Neogene period is further divided into the Miocene and Pliocene epochs. The Quaternary period is further divided into the Pleistocene and Holocene epochs. The term CENOZOIC is an acronym for the three periods of the Cenozoic ERA: the Paleogene (ERA), the EOCENE (EOCENE), and the Neogene (NEOGENE).