Life of Earth

Timeline created by marco213
In History
  • 45,000 BCE

    The Beginning

    The Beginning
    4.5 billion years ago the Earth was an unformed doughnut of molten rock and it was called the synestia.
  • 44,000 BCE

    Meteors

    Meteors
    4.4 billion years ago meteors kept crashing into the Earth causing more extreme temperatures. Also, water started to form.
  • 40,000 BCE

    Showers

    Showers
    4 billion years ago, rain and thunder started to come down. As it rained the Earth started to become a water world.
  • 34,000 BCE

    Green World

    Green World
    3.4 billion years ago the Earth was green with green oceans. This carried bad gases in the oceans that can be deadly to this day.
  • 24,000 BCE

    Continents

    Continents
    2.4 billion years ago the first continents were finally made and also the production of oxygen has formed on Earth. It took a billion years to make the water blue but its not blue its just the refraction.
  • 10,000 BCE

    Rodinia

    Rodinia
    The first continent on Earth. It was called Rodinia and it was a supercontinent. Later was separated by meteors and volcanic activity.
  • 7,000 BCE

    Zero

    Zero
    700 million years ago the Earth was a giant ice ball. The polar region was frozen and almost killed every species and made them extinct.
  • 6,500 BCE

    Below Zero

    Below Zero
    Temperatures were below -40 degrees Fahrenheit. The Rondonia opened up and created shallow oceans. It was broken up by volcanoes and cause the ice to break.
  • 5,410 BCE

    Cambrian

    Cambrian
    Most major groups of species lived in the ocean. They were the first to appear in the fossil record and it was a relatively short time period over diversity of forms that appeared.
  • 4,850 BCE

    Ordovician

    Ordovician
    This time period started a major extinction to most species. The extinction lasted 44.6 mill years which many know that many species came to an end.
  • 4,430 BCE

    Silurian

    Silurian
    The Silurian period was the shortest time period of the Paleozoic Era. It spanded 24.6 million years.
  • 4,190 BCE

    Devonian

    Devonian
    Spanning 60 million years there is a city called Devon, England where rocks from this period of time were first studied.
  • 3,580 BCE

    Carboniferous

    Carboniferous
    Spans 60 million years. This time period reflects the facts that many coal beds were formed globally during that time. Also famous for swamp forests.
  • 2,510 BCE

    Permian

    Permian
    Spans 47 million years. It was the last period of the Paleozoic period. It holds the largest mass extinction in Earth's history. 96% of marine species and 70% of terrestrial species died out.
  • 2,510 BCE

    Triassic A New Era (Mesozoic)

    Triassic A New Era (Mesozoic)
    Lasted about 50.6 million years. A globally warm world that was containing relatively high sea levels and was dominated by reptiles to a world polar glaciation.
  • 2,010 BCE

    Jurassic

    Jurassic
    Spanned 56 million years. Had dinosaurs ruling the Earth as some were meat eaters and others were plant eaters. Many killed each other for food. It is also known as age of the reptiles.
  • 2,000 BCE

    Dino

    Dino
    200 million years ago the dinosaurs walked the Earth. Two foot dragonflies were flying around and a new continent called Pangea was made.
  • 1,450 BCE

    Cretaceous

    Cretaceous
    It was the last of the three periods of the Mesozoic Era and it ended 66 million years ago to this day. It followed the Jurassic Period as the Earth was still ruled by dinosaurs. It ended with a mass extinction.
  • -650 BCE

    Tertiary New Era (Cenozoic)

    Tertiary New Era (Cenozoic)
    Spanned about 66 million years. As reptiles still walked the Earth the land was widely used to live in for the reptiles. Sea levels were high at this period of time.
  • -260 BCE

    Quaternary

    Quaternary
    Encompasses the most recent 2.6 million years and includes the present day. It had dramatic climate changes that affected food resources and brought mass extinctions to many species.