gological timespan

By derekw
  • paleozoic periods old life

    paleozoic periods old life

    The first multicellular atoms flourished on the earth
  • cambrian 570m years ago

    cambrian 570m years ago

    early marine life
  • Period: to

    paleiozoic

  • ordovician

    ordovician

    there was more marine life
  • Silurian 435m years ago

    Silurian 435m years ago

    earlyiest plants and animals
  • Devonian 395m years ago

    Devonian 395m years ago

    earlyiest amphibians
  • carboifourous

    carboifourous

    earliest reptiles and scale trees and seed ferns
  • permian

    permian

    extinction of types of marine animals
  • trassic 225m

    trassic 225m

    early dinos abumdant cycadsads and conifers
  • Period: to

    mesozoic

  • jurassic 195m yrs

    jurassic 195m yrs

    early birds and mammals
  • cretaceous

    cretaceous

    early flowering plants
  • Period: to

    cenozoic

  • tertiary

    tertiary

    early palceental mammals
  • quartnary

    quartnary

    large carnivours