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Geology Timeline

By Arbiter01
  • Cambrian Period. 570-500 MYA

    Cambrian Period. 570-500 MYA

    All life marine. Trilobites abundant
  • Ordovician. 500-435 MYA

    Ordovician. 500-435 MYA

    Earliest fishes. Invertebrates, coelenterates, and mollusks are abundant. Echinoderms begin to have variants.
  • Silurian. 435-395 MYA

    Silurian. 435-395 MYA

    Earliest terrestial plants and animals. Peak development of euryplerids.
  • Devonian. 395-345 MYA

    Devonian. 395-345 MYA

    Earliest amphibians and ammonites. Mass extinction of armored fishes. unarmored fish become abundant.
  • Carboniferous. 345-280 MYA

    Carboniferous. 345-280 MYA

  • Permian. 280-225 MYA

    Permian. 280-225 MYA

  • Triassic. 225-195 MYA

    Triassic. 225-195 MYA

  • Jurassic. 195-136 MYA

    Jurassic. 195-136 MYA

  • Cretaceous. 136-65 MYA

    Cretaceous. 136-65 MYA

  • Tertiary. 65-1.8 MYA

    Tertiary. 65-1.8 MYA

  • Quarternary. 1.8 MYA-Present

    Quarternary. 1.8 MYA-Present