Darrells geologic timeline

By carlsdar
  • 395 BCE

    Devonian 395-345mya

    Devonian 395-345mya
    Armored fish go extinct, but abundance of several species of fish. Earliest amphibians and ammonites.
  • 345 BCE

    carboniferous 345-280mya

    carboniferous 345-280mya
    Abundant sharks and amphibians. Large swamps and coal forming forests. Earliest reptiles. Scale trees and seed ferns.
  • 136 BCE

    cretaceous 136-65mya

    cretaceous 136-65mya
    Earliest flowering plants, climax of dinosaurs followed by their extinction. Great decline of brachiopods. Abundance of bony fish.
  • 195

    jurassic 195-136mya

    jurassic 195-136mya
    Earliest birds and mammals abundant dinosaurs and ammonite
  • 225

    Triassic 225-195mya

    Triassic 225-195mya
    Earliest Dinosaurs, abundant cycads and conifers
  • 280

    permian 280-225mya

    permian 280-225mya
    Extinction of many types of marine animals including trilobites.
  • 435

    silurian 435-395mya

    silurian 435-395mya
    Earliest terrestrial plants and animals. tiktaalik eurypterids develop
  • 500

    ordovician 500-435mya

    ordovician 500-435mya
    Echinoderms and invertebrates are the dominant species.mollusks are abundant.Earliest Fish that are Jawless and later, jawed and armored fish.
  • 570

    cambrian 570-500mya

    cambrian 570-500mya
    Earliest record of marine life
    Trilobites are the dominant species

  • tertiary 65-1.8mya

    tertiary 65-1.8mya
    Earliest Placental Mammals, modern mammals, large running mammals