What EON lasted the longest?

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Related questions

  1. Which era is the shortest?
  2. What EON are we currently in?
  3. What epoch are we currently in?
  4. Which EON has the most life?
  5. Is Eoin the Irish for John?
  6. Is Tidus an Aeon?
  7. What is the current epoch?
  8. How many aeons are there?
  9. What is an eon of time?
  10. Is Owen an Irish name?

Tags

  1. #second
  2. #dating
  3. #recognized
  4. #formal
  5. #cambrian
  6. #geologic
  7. #archean
  8. #billion
  9. #refers
  10. #present
  11. #years
  12. #beginning
  13. #longest
  14. #three
  15. #often
  16. #phanerozoic
  17. #usage
  18. #proterozoic
  19. #portions
  20. #period
  21. #formally