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Revision as of 22:26, 13 January 2014 editExcirial (talk | contribs)211,201 editsm Reverted edits by 98.209.184.187 (talk): editing tests (HG 3)← Previous edit Revision as of 21:38, 24 April 2014 edit undoMarkusQ (talk | contribs)80 edits There are 14 eras listed in the body of the article, so saying there are 10 total in the summary is inconsistent.Next edit →
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| <center>]</center>||<center>]</center>||4 total, half a billion years or more | <center>]</center>||<center>]</center>||4 total, half a billion years or more
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| <center>]</center> ||<center>]</center>||10 total, several hundred million years | <center>]</center> ||<center>]</center>||14 total, several hundred million years
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| <center>]</center> || <center>]</center>|| | <center>]</center> || <center>]</center>||

Revision as of 21:38, 24 April 2014

e  h
Units in geochronology and stratigraphy
Segments of rock (strata) in chronostratigraphy Time spans in geochronology Notes to
geochronological units
Eonothem
Eon
 4 total, half a billion years or more
Erathem
Era
 14 total, several hundred million years
System
Period
Series
Epoch
 tens of millions of years
Stage
Age
 millions of years
Chronozone
Chron
 subdivision of an age, not used by the ICS timescale

References

These references will appear in the article, but this list appears only on this page.
  1. Cohen, K.M.; Finney, S.; Gibbard, P.L. (2013), International Chronostratigraphic Chart (PDF), International Commission on Stratigraphy {{citation}}: Unknown parameter |author-separator= ignored (help).


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