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Permian    音标拼音: [p'ɚmiən]
a. 二叠纪的
n. 二叠纪

二叠纪的二叠纪

Permian
n 1: from 280 million to 230 million years ago; reptiles [synonym:
{Permian}, {Permian period}]


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  • Permian - Wikipedia
    The Permian ( ˈ p ɜːr m i ə n PUR-mee-ən) [4] is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period 298 9 million years ago (Mya), to the beginning of the Triassic Period 251 902 Mya
  • Permian Period | Plants, Animals, Extinction, Facts . . .
    Permian Period, in geologic time, the last period of the Paleozoic Era The Permian Period began 298 9 million years ago and ended 252 2 million years ago, extending from the close of the Carboniferous Period to the outset of the Triassic Period
  • Permian Period: Climate, Animals Plants - Live Science
    The Permian Period was the final period of the Paleozoic Era Lasting from 298 9 million to 251 9 million years ago, it followed the Carboniferous Period and preceded the Triassic Period
  • Permian Period—298. 9 to 251. 9 MYA - U. S. National Park Service
    On land, reptiles replaced amphibians in abundance The most devastating incidence of mass extinction in Earth’s history marked the end of the Permian Period Learn about what events during the Permian Period
  • Permian Period and Extinction - National Geographic
    The Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago The emerging supercontinent of Pangaea presented severe extremes of
  • Permian Period - Natural History Museum
    The Permian is the last Period of the Paleozoic Era It ended with the greatest mass extinction known in the last 600 million years Up to 90% of marine species disappeared from the fossil record, with many families, orders, and even classes becoming extinct
  • The Permian Period - University of California Museum of . . .
    The Permian period lasted from 299 to 251 million years ago* and was the last period of the Paleozoic Era The distinction between the Paleozoic and the Mesozoic is made at the end of the Permian in recognition of the largest mass extinction recorded in the history of life on Earth





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