Cayden Geologic Timeline

  • Cambrian 570MYA- 500MYA
    570 BCE

    Cambrian 570MYA- 500MYA

    Earliest record of marine life.
  • Ordovician 500MYA - 435MYA
    500 BCE

    Ordovician 500MYA - 435MYA

    Invertebrates are dominate.
  • Silurian 435MYA-395MYA
    435 BCE

    Silurian 435MYA-395MYA

    Earliest terrestrial plants and animals.
  • Devonian 395MYA-345MYA
    395 BCE

    Devonian 395MYA-345MYA

    Armoured fish go extinct, earliest amphibians and ammonites.
  • Carboniferous 345MYA-280MYA
    345 BCE

    Carboniferous 345MYA-280MYA

    Sharks and amphibians large swamps coal farming forests. earliest reptiles
  • Permian 280MYA-225MYA
    280 BCE

    Permian 280MYA-225MYA

    Extinction of many types of marine animals including trilobites.
  • Jurassic 195MYA-136MYA
    195 BCE

    Jurassic 195MYA-136MYA

    Earliest birds, mammals, abundant dino's.
  • Quaternary 1.8MYA-Present Day
    1 CE

    Quaternary 1.8MYA-Present Day

    Large carnivores, neanderthals, humans, mastodons.
  • Tertiary 65MYA-1.8MYA
    65

    Tertiary 65MYA-1.8MYA

    Earliest placental mammals, modern mammals, large running animals.
  • Cretaceous 136MYA-65MYA
    136

    Cretaceous 136MYA-65MYA

    Earliest flowering plant life.
  • Triassic 225MYA-195MYA
    225

    Triassic 225MYA-195MYA

    Earliest dinosaurs.