443.8–419.2 million years ago

by Smith609, design adapted from Luxo's

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