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Pleistocene    音标拼音: [pl'ɑɪstəs,in]
n. 更新世,洪积世

更新世,洪积世

Pleistocene
n 1: from two million to 11 thousand years ago; extensive
glaciation of the northern hemisphere; the time of human
evolution [synonym: {Pleistocene}, {Pleistocene epoch},
{Glacial epoch}]


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  • Pleistocene - Wikipedia
    Charles Lyell introduced the term "Pleistocene" in 1839 to describe strata in Sicily that had at least 70% of their molluscan fauna still living today This distinguished it from the older Pliocene Epoch, which Lyell had originally thought to be the youngest fossil rock layer
  • Pleistocene Epoch | Plants, Animals, Climate, Ice Age, Facts - Britannica
    Pleistocene Epoch, earlier and major of the two epochs of the Quaternary Period of Earth’s history, an epoch during which a succession of glacial and interglacial climatic cycles occurred It ended 11,700 years ago It was preceded by the Pliocene Epoch and followed by the Holocene Epoch
  • Pleistocene - New World Encyclopedia
    This recent period is characterized by repeated cycles of glaciation and the emergence of Homo sapiens The Pleistocene is divided into the Early Pleistocene, Middle Pleistocene, and Late Pleistocene, and a number of faunal stages (divisions based on fossil evidence)
  • Pleistocene Epoch: Humans, Welcome to Earth | Ancient Origins
    The Pleistocene epoch is a geologic epoch which began around 2 6 Mya (Million years ago) and came to an end around 11,700 BP (Before Present) It is characterized by lower sea levels than the present epoch and colder temperatures
  • The Pleistocene Epoch
    Many paleontologists study Pleistocene fossils in order to understand the climates of the past The Pleistocene was not only a time during which climates and temperatures shifted dramatically; Pleistocene fossils are often abundant, well-preserved, and can be dated very precisely
  • The Pleistocene Epoch: Ice Ages, Mammals, and Early Humans
    Few chapters in Earth’s history are as dramatic as the Pleistocene Epoch – a stretch of time spanning from roughly 2 6 million to 11,700 years ago during which the planet repeatedly swung between deep freezes and warmer thaws
  • Pleistocene epoch: The last ice age - Live Science
    The Pleistocene epoch lasted from about 2 6 million to 11,700 years ago and included the last ice age, when glaciers and giant megafauna dominated the landscape
  • Pleistocene climate | Geology | Research Starters - EBSCO
    The Pleistocene epoch, spanning from approximately 2 6 million to 11,700 years ago, is marked by significant climatic fluctuations characterized by glacial and interglacial periods
  • Ancient Climate Events: Pleistocene Glaciation | EARTH 103: Earth in . . .
    Our understanding of the climate of the Pleistocene surged in the 1950s when coring of sediment began in the deep sea and when the potential of oxygen isotopes in reconstructing ancient climate began to be realized
  • The Pleistocene Epoch – Molecular Ecology Evolution: An Introduction
    The Pleistocene was characterized by a series of glacial and interglacial periods where large ice sheets periodically expanded and retreated These glaciations covered much of the Northern Hemisphere, particularly North America and Eurasia





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