Geology.

By esthergorham
  • Period: to

    Historical Geology

  • Cambrian 570m-500m

    Cambrian 570m-500m

  • ordovician 500m-435m

    ordovician 500m-435m

  • Sulurian 435m-395m

    Sulurian 435m-395m

  • Devonian 395m-345m

    Devonian 395m-345m

  • carboniferus 345m-280m

    carboniferus 345m-280m

  • permain 280m-225m

    permain 280m-225m

  • triassic 225m-195m

    triassic 225m-195m

  • jurassic 195m-136m

    jurassic 195m-136m

  • cretaceous 136m-65m

    cretaceous 136m-65m

  • tertiary 65m-1.8m

    tertiary 65m-1.8m

  • quaternary 1.8m-present

    quaternary 1.8m-present