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
Eocene Epoch | Climate, Flora Fauna | Britannica The Eocene Epoch marks the first appearance in the fossil record of the two completely marine mammal groups, the cetaceans (whales, porpoises, and dolphins) and the sirenians (akin to the modern manatees and dugongs) Similarly, the Eocene provides the first elephant-like animals and the early bats
Eocene - New World Encyclopedia 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 the emergence of the first modern mammals Within a geologically brief period of time in the early Eocene, most of the modern mammal orders appeared
The Eocene Epoch The early Eocene (Ypresian) is thought to have had the highest mean annual temperatures of the entire Cenozoic Era, with temperatures about 30° C; relatively low temperature gradients from pole to pole; and high precipitation in a world that was essentially ice-free
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
Eocene Epoch | Encyclopedia. com The Eocene Epoch, second of the five epochs into which the Tertiary Period is divided, lasted from 54 to 38 million years ago Mammals became the dominant land animals during this epoch
The Eocene Epoch (56-34 Million Years Ago) - Paleontology World The Eocene epoch was when the first prehistoric whales left dry land and opted for a life in the sea, a trend that culminated in the middle Eocene Basilosaurus, which attained lengths of up to 60 feet and weighed in the neighborhood of 50 to 75 tons
Eocene - Simple English Wikipedia, the free encyclopedia The Eocene was the second geological epoch in the Palaeogene, and by far the longest [1] It began 56 million years ago, and ended 33 9 million years ago with a global warming crisis
Eocene Epoch in Geological Time Scale in Archaeology | Anthroholic The Eocene was an epoch of significant mammalian evolution, following the extinction of dinosaurs at the end of the Cretaceous period A wide range of mammalian families emerged during this time, many of which still exist today