Precambrian Earth ] Back | Next >

 Earth orbit
 600 million years ago

Mean atmospheric O2
 40% of modern level

Mean atmospheric CO2
 16x pre-industrial level


Precambrian Earth - Ediacaran Earth from 600 million years ago featuring the Pannotia supercontinent and Panthalassic Ocean; Treptichnus pedum; Proterozoic eon; Earth from space; plate tectonics; lithosphere; seafloor spreading; continental drift; tectonophysics - Natural History Illustration Geologic Time Scale

Supereon: Precambrian
 Eon: Proterozoic
  Era: Neo-proterozoic
   Period: Ediacaran


Ediacaran Earth

This is how the Earth may have appeared 600 million years ago following the Cryogenian "Snowball Earth" period. The worldwide glaciers have melted and the ocean is largely liquid again. During this, the Ediacaran period, it is hypothesized that all of the Earth's landmasses had merged into a single supercontinent known as Pannotia, also known as the Vendian supercontinent. Surrounding this massive landmass is the vast Panthalassic Ocean, also known as Panthalassa.

While the ocean was home to a variety of evolving multicellular life forms including the ubiquitous Dickinsonia costata, it is not believed that life had moved to dry land with possible exception of bacteria and other microbial colonies.



Copyright Walter B. Myers. All rights reserved.

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