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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 - Britannica
    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—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: 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 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
  • Permian - New World Encyclopedia
    The Permian period saw the development of a fully terrestrial fauna and the appearance of the first large herbivores and carnivores Permian tetrapods (four-legged vertebrates ) comprised both amphibians (classified into three groups) and reptiles (also classified into three groups)
  • Permian Period - Geology Page
    The Permian is a geologic period and system which extends from 298 9 ± 0 2 to 252 2 ± 0 5 (Million years ago) It is the last period of the Paleozoic Era, following the Carboniferous Period and preceding the Triassic Period of the Mesozoic Era
  • Permian - Paleontology World
    The Permian Period was the final period of the Paleozoic Era Lasting from 299 million to 251 million years ago, it followed the Carboniferous Period and preceded the Triassic Period By the early Permian, the two great continents of the Paleozoic, Gondwana and Euramerica, had collided to form the supercontinent Pangaea Pangaea was shaped like
  • Permian Period - Geology, Extinction, Climate | Britannica
    Permian Period in geologic time The Permian Period and its subdivisions The Permian Period is subdivided into Early (Cisuralian), Middle (Guadalupian), and Late (Lopingian) epochs corresponding to the Cisuralian, Guadalupian, and Lopingian rock series





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