The Paleozoic Era
570 million to 250 million years ago

 

Cambrian Period 570 million to 510 million years ago

 

Ordovician Period 510 million to 440 million years ago

 

Silurian Period 440 million to 408.5 million years ago

 

Devonian Period 408.5 million to 362.5 million years ago

 

Carboniferous Period 362.5 million to 290 million years ago

 

Permian Period 290 million to 250 million years ago

 

 

Return to the Phanerozoic Eon
Return to Miraculum Antiquitus
Return to the Explorations Index

 

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Contents © John M. and Margo L. Dollan 2003
Other usage cited at Usage Permission Page
This Page first uploaded December 15, 2003
Most recent update for this page December 15, 2003