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Stephen Hawking - Formation of the Solar System-004:28

Stephen Hawking - Formation of the Solar System-0

Forums: Index > GeoLife™ NewGeo > Geological Timeline: Going Cambrian


This is a tour of what Earth was like in the past and then continuing to today. As you will see, Earth never will look exactly like it did in a specific past portion of the timeline.

HadeanEdit

Being such the first eon of Earth's history, volcanoes and asteroid impacts have affected the feel of the very beginning of Mercury, Venus, Mars, Jupiter, and our planet, Earth.

  • Jacobian epoch (unofficial), 4.5-4.4 Gya
  • Canadian epoch (unofficial), 4.4-4.3 Gya
  • Nectarian period (unofficial), 4.3-4.25 Gya
  • Acastan epoch (unofficial), 4.2-4.1 Gya
  • Promethean epoch (unofficial), 4.0-3.9 Gya
  • - Possible first appearances of Panbacteria, 4.02 Gya
  • - The continent of Pan-Ur had formed, 4.02-3.98 Gya

ArcheanEdit

The Hadean, which was during the time where some people would involve in roasted feet, has cooled off and was brought to an abrupt end. Then the Archean began with a big floruish to life, where thin seaways, a big ocean surrounding the continents and islands, and even many marshes that were probably a place for bacteria to swim.

  • Forstian epoch, 3.8-3.7 Gya
  • - First evidence of the very first Archaea, 3.8 Gya
  • Taimatsuan period, 3.45-3.25 Gya
  • - First amoeba-like organisms and other earliest prototypes of eukaryotes were evolving, 3.43 Gya
  • - Second GOE event on Earth occured, 3.37-3.30 Gya
  • Cyanobacteria can swim in water.
  • Proteobacteria evoled from Panbacteria.
  • Modern South American glacier dating back to the Honolulian.
  • Illustration of marsh potholes of what life could have been living in during the Taimatsuan.

Proterozoic Edit

The Archean, which was a marshy and early part of the Precambrian supereon, has ended after the last two periods of the Archean eon. Now we're in the Proterozoic, the other eon of the Precambrian time.

Phanerozoic Edit

We are now in the Phanerozoic. This is the eon where life evolves to the present, as many new organisms come to life. The Phanerozoic will continue to the present day.

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