Eocene - Wikipedia The Eocene (IPA: ˈiːəsiːn, ˈiːoʊ - EE-ə-seen, EE-oh-[5][6]) is a geological epoch that lasted from about 56 to 33 9 million years ago (Ma) It is the second epoch of the Paleogene Period in the modern Cenozoic Era The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch The start of the Eocene is marked by a brief period in which the
Eocene Epoch | Climate, Flora Fauna | Britannica Eocene Epoch, second of three major worldwide divisions of the Paleogene Period (66 million to 23 million years ago) that began 56 million years ago and ended 33 9 million years ago It follows the Paleocene Epoch and precedes the Oligocene Epoch The Eocene is often divided into Early (56 million
The Eocene Epoch - University of California Museum of Paleontology The Eocene is the second of five epochs in the Tertiary Period the second of three epochs in the Paleogene and lasted from about 55 8 to 33 9 million years ago * The oldest known fossils of most of the modern orders of mammals appear in a brief period during the early Eocene and all were small, under 10 kg Both groups of modern ungulates, Artiodactyla and Perissodactyla, became prevalent
Eocene - New World Encyclopedia The Eocene epoch (56-34 million years ago) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era The Eocene spans the time from the end of the Paleocene epoch to the beginning of the Oligocene epoch
The Eocene Period: Climate, Animals, and Major Events The Eocene Period, a significant geological epoch, spanned from approximately 56 to 33 9 million years ago, following the Paleocene and preceding the Oligocene Epochs This dynamic interval in Earth’s history saw substantial global changes in climate, geography, and the evolution of life, particularly the diversification of modern mammal groups
Eocene | Perissodactyl - American Museum of Natural History Lasting nearly 22 million years, the Eocene is the longest epoch of the Cenozoic During this time, the first ancestors and close relatives of modern mammal species appeared Many of these modern mammal groups appear at the beginning of the Eocene, a period of dramatic global warming called the Paleocene-Eocene thermal maximum
Palaeos Cenozoic: Eocene: The Eocene Epoch The name Eocene means the "dawn of recent life" Originally the Eocene was the first epoch of the Cenozoic, but then the Paleocene was erected as an earlier epoch Life during the Eocene was pretty similar to that of the Paleocene, a warm tropic world, high sea-levels and island continents, invertebrates and plants similar to those today, while mammals continue to evolve and diversify along
Eocene Epoch - Geology Page The Eocene epoch, lasting from 56 to 33 9 million years ago, is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era The Eocene spans the time from the end of the Palaeocene Epoch to the beginning of the Oligocene Epoch The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the