Geological Time Scale

Random Science or biology Quiz

Can you name the Eons, Eras, and Periods in the Geological Time Scale?

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Eon
4.5-3.5 bya 
3.8-2.5 bya 
2.5-0.5 bya 
543 mya - Present 
Era
*EON* 
3.8-3.4 bya 
3.4-3.0 bya 
3.0-2.5 bya 
*EON* 
2.5-1.6 bya 
1.6-0.9 bya 
900-543 mya 
*EON* 
543-248 mya 
248-65 mya 
65 mya - Present 
Period
*EON* 
*ERA* 
543-490 mya 
490-443 mya 
443-417 mya 
417-354 mya 
354-290 mya 
290-248 mya 
*ERA* 
248-206 mya 
206-144 mya 
144-65 mya 
*ERA* 
65-1.8 mya 
1.8 mya - Present 

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