ANP 201 Chapter Notes - Chapter 9: Postorbital Bar, Oligocene, Paleocene
Document Summary
Vocab: epoch: a subdivision of a geological period, continental drift:the movement of continental land masses on top of a partially molten layer of the earths mantle that has altered the relative location of the continents over time. Paleocene epoch: the first epoch of the cenozoic era, dating between 65. 5 million and 55. 8 million years ago. The primate like mammals appeared during the paleocene. This species is intermediate in many respects between primitive primate like mammals and true primates: eocene epoch: the second epoch of the cenozoic era, dating between 55. 8 million and 33. 9 million years ago. The first true primates, primitive prosimians, appeared during the eocene: oligocene epoch: the third epoch of the cenozoic era, dating between 33. 9 million and 23 million years ago. Anthropoids underwent an adaptive radiation during the oligocene: miocene epoch: the fourth epoch of the cenozoic era, dating between 23 million and 5. 3 million years ago.
