The Paleogene Period (IPA: / ˈ p eɪ l i. ə dʒ iː n,-l i. oʊ-, ˈ p æ l i-/ PAY-lee-ə-jeen, -⁠lee-oh-, PAL-ee-; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 …

Feb 21, 2025 · The term Paleogene was devised in Europe to emphasize the similarity of marine fossils found in rocks of the first three Cenozoic epochs, as opposed to the later fossils of the …

Apr 27, 2023 · The Paleogene Period is the first of three periods in the Cenozoic Era. The Paleogene represents less than 1% of geologic time; however, the rocks of this period were …

Learn about the time period that took place 65 to 23 million years ago. At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine …

Oct 30, 2012 · The Paleogene sees the rapid filling of the environment following the K/T extinction, though it took more than two million years for the Earth’s ecosystems to recover …

The Paleogene Period The Beginning of The Cenozoic Era. The Paleogene Period marks the beginning of the Cenozoic Era. It began 65 million years ago and lasted more than 40 million …

Jan 31, 2019 · The Paleogene was the first period of the Cenozoic Era (65 million years ago to the present), followed by the Neogene period (23-2.6 million years ago), and is itself divided …

The Paleogene period is most notable as being the time in which mammals evolved from small, simple forms into diverse animals in the wake of the mass extinction that ended the preceding …

Apr 29, 2014 · The Paleogene is a geologic period and system that began 66 and ended 23.03 million years ago and comprises the first part of the Cenozoic Era. Lasting 43 million years, the …

The Paleogene Period refers to the geological time interval from 66 to 23 million years ago, characterized by significant climate changes, the breakup of Pangea, and the diversification of …