/Timeline.php?Ma=438.5 million years ago

by Smith609, design adapted from Luxo's

on the international stratigraphic timescale 
When era, eon
Timeline
. Ma
438.5 Ma
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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. Ma
438.5 Ma
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0
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Million years ago
Compiled using data from the GeoWhen database. Discuss this implementation by Martin Smith.
Geological timescale is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported LicenseCreative Commons License.