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Eocene    音标拼音: ['iəs,in]
n. 始新世,第三纪下层
a. 始新世的,第三纪下层的

始新世,第三纪下层始新世的,第三纪下层的

Eocene
n 1: from 58 million to 40 million years ago; presence of modern
mammals [synonym: {Eocene}, {Eocene epoch}]


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  • 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
  • Leaders in Environmental Services | Eocene Environmental Group
    At Eocene, we work to improve communities through sustainable solutions, environmental stewardship, innovation and collaboration Learn about our services here
  • 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
  • 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
  • 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 - 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
  • 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 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 | Perissodactyl - American Museum of Natural History
    The Eocene is the heyday of the perissodactyls, with more kinds of this ungulate group present than in any other epoch As the Eocene progressed, the Earth's temperature gradually cooled The rainforest-like habitats that covered much of the continents gave way to more open woodland
  • 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





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