Geologic timespans similar to or like Silurian

Geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago , to the beginning of the Devonian Period, Mya. Wikipedia

  • Ordovician

    Geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. Wikipedia

  • Devonian

    Geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago , to the beginning of the Carboniferous, Mya. Named after Devon, England, where rocks from this period were first studied. Wikipedia

  • Carboniferous

    Geologic period and system that spans 60 million years from the end of the Devonian Period million years ago , to the beginning of the Permian Period, Mya. Coined by geologists William Conybeare and William Phillips in 1822. Wikipedia

  • Permian

    Geologic period and system which spans 47 million years from the end of the Carboniferous period million years ago , to the beginning of the Triassic period 251.902 Mya. Last period of the Paleozoic era; the following Triassic period belongs to the Mesozoic era. Wikipedia

  • Jurassic

    Geologic period and system that spanned 56 million years from the end of the Triassic Period million years ago to the beginning of the Cretaceous Period Mya. The Jurassic constitutes the middle period of the Mesozoic Era. Wikipedia

  • Triassic

    Geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago , to the beginning of the Jurassic Period 201.36 Mya. First and shortest period of the Mesozoic Era. Wikipedia

    Sentences

    Sentences forSilurian

    • Arthropods provide the earliest identifiable fossils of land animals, from about in the Late Silurian, and terrestrial tracks from about appear to have been made by arthropods.Arthropod-Wikipedia
    • The Upper Peninsula exhibits Lower Silurian sandstones, limestones, copper and iron bearing rocks, corresponding to the Huronian system of Canada.Michigan-Wikipedia
    • The geological foundations largely comprise Silurian deposits laid down some 400–500 million years ago.Scotland-Wikipedia
    • Vascular plants first appeared during the Silurian period, and by the Devonian had diversified and spread into many different terrestrial environments.Plant-Wikipedia
    • During the Silurian period, the north-western regions collided with the south-east, which had been part of a separate continental landmass.British Isles-Wikipedia
    • The extinctions occurred approximately 447–444 million years ago and mark the boundary between the Ordovician and the following Silurian Period.Ordovician-Wikipedia

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