HELP INDEX NEXT UP PREVIOUS FEEDBACK ATG
Timeline

(NOTE: BYA = Billions of Years Ago, MYA = Millions of Years Ago, KYA = Thousands of Years Ago, YA = Years Ago)

4.6BYA
3.5BYA
2.9BYA
2.5BYA
1.6BYA
900MYA
550MYA
248MYA
65MYA
PERIOD
PRECAMBRIAN
POST-CAMBRIAN *
ERA
EARLY
ARCHEAN
MIDDLE
ARCHEAN
LATE
ARCHEAN
EARLY
PROTEROZOIC
MIDDLE
PROTEROZOIC
LATE
PROTEROZOIC
PALEOZOIC
MESOZOIC
CENOZOIC
EON
ARCHEAN
PROTEROZOIC
PHANEROZOIC

*
550MYA
505MYA
438MYA
408MYA
360MYA
320MYA
286MYA
248MYA
65MYA
PERIOD
CAMBRIAN
ORDOVICIAN
SILURIAN
DEVONIAN
MISSISSIPPIAN
PENNSYLVANIAN
PERMIAN
**
**
ERA
PALEOZOIC
MESOZOIC
CENOZOIC
EON
PHANEROZOIC

**
248MYA
208MYA
144MYA
65MYA
53MYA
36.5MYA
23MYA
5.3MYA
2MYA
10KYA
EPOCH
---
PALEOCENE
EOCENE
OLIGOCENE
MIOCENE
PLIOCENE
PLEISTOCENE
HOLOCENE
PERIOD
TRIASSIC
JURASSIC
CRETACEOUS
TERTIARY
QUATERNARY ***
ERA
MESOZOIC
CENOZOIC
EON
PHANEROZOIC

***
2MYA
10KYA
1KYA
100YA
10YA
1YA
+10Y
+100Y
+1000Y
HISTORY
EARLY
ANCIENT
MEDIEVAL
MODERN
RECENT
NOW
FUTURE
EPOCH
PLEISTOCENE
HOLOCENE
PERIOD
QUATERNARY
ERA
CENOZOIC
EON
PHANEROZOIC


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