Geological periods

2017-07-28T19:54:03+03:00[Europe/Moscow] en true Carboniferous, Cretaceous, Cryogenian, Jurassic, Ordovician, Paleogene, Permian, Quaternary, Silurian, Ice age, Tertiary flashcards Geological periods
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  • Carboniferous
    The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period 358.
  • Cretaceous
    The Cretaceous (pronunciation: /krᵻˈteɪʃəs/, krə-TAY-shəs) is a geologic period and system that spans 79 million years from the end of the Jurassic Period 145 million years ago (Mya) to the beginning of the Paleogene Period 66 Mya.
  • Cryogenian
    The Cryogenian (pronunciation: /kraɪoʊˈdʒɛniən/, from Greek cryos "cold" and genesis "birth") is a geologic period that lasted from 720 to 635 million years ago.
  • Jurassic
    The Jurassic (pronunciation: /dʒuːˈræsɪk/; from Jura Mountains) is a geologic period and system that spans 56.
  • Ordovician
    The Ordovician (pronunciation: /ɔːrdəˈvɪʃən/) is a geologic period and system, the second of six of the Paleozoic Era, that spans 41.
  • Paleogene
    The Paleogene (pronunciation: /ˈpæliːədʒiːn/ or /ˈpeɪliːədʒiːn/; also spelled Palaeogene or Palæogene; informally Lower Tertiary) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period 66 million years ago (Mya) to the beginning of the Neogene Period 23.
  • Permian
    The Permian is a geologic period and system which spans 46.
  • Quaternary
    The Quaternary Period (pronunciation: /kwəˈtɜːrnəri/) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS).
  • Silurian
    The Silurian is a geologic period and system spanning 24.
  • Ice age
    An ice age is a period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.
  • Tertiary
    Tertiary is the former term for the geologic period from 66 million to 2.