Geological Timeline

Timeline created by Iliana
  • Period: to

    Earths Lifespan

    This Calender year represents earths lifespan. January represents the begining/early years of Earth, also known as the Precambrian Era. December will represent the Cenozic Era, which is still going on today.
  • Period: to

    Precambrian Era

    *Climate: Began cold, and grew warmer all over earth
    - The continents were just begining to form
    - No plants or animals on lans *Animals: Explosion of water animals
    -inverterbrates (no backbones)
  • Period: to

    Archaen Period

    began 4.6 bya and ended 2.5 bya
  • Bombardment of the Earth by planetesimals stops

    Bombardment of the Earth by planetesimals stops
    4bya
  • Period: to

    Proterozoic Period

    began 2.5 bya and ended 546 mya
  • Fossils of Ediacaran organisms are made

    Fossils of Ediacaran organisms are made
    580-545 mya
  • Period: to

    Paleozoic Era

    *Climate: The Early Cambrian climate moderate at first,and became warmer, middle paleozoic was the Ice Age. *Animals Life: sudden appearance of invertebrate animal phyla *Plant Life: Carboniferous Period
  • Period: to

    Cambrian Period

    began 546 mya and ended 510 mya
  • Cambrian explosion of hard-bodied organisms

    Cambrian explosion of hard-bodied organisms
    545 mya
  • Fossilization of the Burgess Shale

    Fossilization of the Burgess Shale
    517 mya
  • Period: to

    Ordovician Period

    began 510 mya and ended 439 mya
  • Rise of the fish--first vertebrates

    Rise of the fish--first vertebrates
    500-450 mya
  • Period: to

    Silurian Period

    began 439 mya and ended 408 mya
  • Waxy coated algae begin to live on land

    Waxy coated algae begin to live on land
    430 mya
  • Period: to

    Devonian Period

    began 408 mya and ended 362 mya
  • Millipedes have evolved--first land animals

    Millipedes have evolved--first land animals
    420 mya
  • The Appalachian mountains are formed via a plate tectonic collision between North America, Africa, and Europe

    The Appalachian mountains are formed via a plate tectonic collision between North America, Africa, and Europe
    375 mya
  • Appearance of primitive sharks

    Appearance of primitive sharks
    375 mya
  • Period: to

    Mississippian Period

    began 362 mya and ended 323 mya
  • Rise of the amphibians

    Rise of the amphibians
    350- 300 mya
  • Period: to

    Pennsylvanian Period

    began 323 mya and ended 290 mya
  • Rise of the reptiles

    Rise of the reptiles
    300-200 mya
  • Period: to

    Permian Period

    began 290 mya and ended 245 mya
  • Beetles and weevils have evolved

    Beetles and weevils have evolved
    280 mya
  • Permian period mass extinction

    Permian period mass extinction
    250 mya
  • Period: to

    Mesozoic Era

    *Climate: Warm all around *Animal Life: Dominated by large reptiles, dinosuars and large aquatic reptiles
  • Period: to

    Triassic Period

    began 245 mya and ended 208 mya
  • Modern ferns have evolved

    Modern ferns have evolved
    225 mya
  • Roaches and termites have evolved

    Roaches and termites have evolved
    230 mya
  • Period: to

    Jurassic Period

    began 208 mya and ended 146 mya
  • Pangaea starts to break apart

    Pangaea starts to break apart
    200 mya
  • Appearance of mammals

    Appearance of mammals
    200 mya
  • Period: to

    Cretaceous Period

    began 146 mya and ended 65 mya
  • Archaeopteryx walks the Earth

    Archaeopteryx walks the Earth
    145 mya
  • Modern sharks have evolved

    Modern sharks have evolved
    90 mya
  • extinction dinosaurs

    extinction dinosaurs
    65 mya
  • Beginning of the reign of mammals

    Beginning of the reign of mammals
    65 mya
  • Period: to

    Cenozoic Era

    *Climate: Period of long term cooling *Animal Life: Rise of mammals *Plant Life: Age of flowering plants
  • Period: to

    Tertiary Period

    began 65 mya and ended 1.6 mya
  • Australopithecus exist

    Australopithecus exist
    4.6 mya
  • Period: to

    Quaternary Period

    began 1.6 mya and is still going on today
  • Homo sapiens neanderthalensis exist

    Homo sapiens neanderthalensis exist
    .2-.03 mya