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-----------------------AGES AND GEOLOGICAL PERIODS
 
ERA PERIOD AGE
Million years
CUATERNARIO
HOLOCENE
2
PLEISTOCENE
CENOZOIC
PLIOCENE
22
MIOCENE
OLIGOCENE
EOCENE
65
PALEOCENE
CRETACEOUS
140
JURASIC
195
TRIASIC
230
PALEOZOIC
PERMIAN
280
CARBONIFEROUS
345
DEVONIAN
395
SILURIAN
435
ORDOVICIAN
500
CAMBRIAN
570
ARCHAEOZOIC
ALGONQUIENSE
4500
ARQUEANO
 
 

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