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Revision as of 23:44, 27 February 2010 editPontificalibus (talk | contribs)Extended confirmed users, Pending changes reviewers21,089 edits link to dab page linking here← Previous edit Revision as of 17:36, 22 April 2010 edit undoAndrewTJ31 (talk | contribs)994 edits removing links to incorrect articles as I could not find evidence that the correct articles exist anymoreNext edit →
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| <center>]</center>||<center>Eon</center>||4 total, half a billion years or more | <center>]</center>||<center>Eon</center>||4 total, half a billion years or more
|- |-
| <center>]</center> ||<center>]</center>||12 total, several hundred million years | <center>]</center> ||<center>Era</center>||12 total, several hundred million years
|- |-
| <center>]</center> || <center>Period</center>|| | <center>]</center> || <center>Period</center>||
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| <center>]</center> || <center>]</center>|| tens of millions of years | <center>]</center> || <center>]</center>|| tens of millions of years
|- |-
| <center>]</center> || <center>]</center> || millions of years | <center>]</center> || <center>Age</center> || millions of years
|- |-
|<center>]</center> || <center>]</center> || smaller than an age/stage, not used by the ICS timescale |<center>]</center> || <center>Chron</center> || smaller than an age/stage, not used by the ICS timescale
|}<noinclude> |}<noinclude>



Revision as of 17:36, 22 April 2010

e  h
Units in geochronology and stratigraphy
Segments of rock (strata) in chronostratigraphy Periods of time in geochronology Notes
Eonothem
Eon
4 total, half a billion years or more
Erathem
Era
12 total, several hundred million years
System
Period
Series
Epoch
tens of millions of years
Stage
Age
millions of years
Chronozone
Chron
smaller than an age/stage, not used by the ICS timescale

References

These references will appear in the article, but this list appears only on this page.
  1. International Commission on Stratigraphy. "International Stratigraphic Chart" (PDF). Retrieved 2009-09-25.
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