Life On Earth by Jack Stores

By Jack.Stores
  • 3650 BCE

    Earliest evidence of life

  • 2500 BCE

    First photosynthetic/autotrophic bacteria appear

  • 2200 BCE

    First great extinction, oxygen producing bacteria "poison" the environment, age of aerobic organisms begins

  • 1750 BCE

    First eukaryotes appear

  • 650 BCE

    Sexual reproduction begins

  • 550 BCE

    "Cambrian Explosion" huge diversity and complexity increase in a relatively short time

  • Period: 550 BCE to 3650 BCE

    Precambrian Era

  • 505 BCE

    Marine invertebrates appear

  • 438 BCE

    Great Extinction, fish appear

  • 408 BCE

    Land plants appear

  • 360 BCE

    Great Extinction, amphibians appear

  • 286 BCE

    Reptiles appear

  • 245 BCE

    Great Extinction, seed plants appear

  • Period: 245 BCE to 550 BCE

    Paleozoic Era

  • 208 BCE

    Great Extinction, mammals and dinosaurs appear

  • 144 BCE

    Primitive birds appear

  • 66 BCE

    Great Extinction, dinosaurs disappear

  • Period: 66 BCE to 245 BCE

    Mesozoic Era

  • 38 BCE

    Anthropoids appear

  • 37 BCE

    Primitive horses appear

  • 1 BCE

    Humans appear

    Even though it says 1 BC it was really 100,000 BC
  • 1 CE

    Jesus is born

  • USA's declaration of independance

  • Period: to 66 BCE

    Cenozoic Era