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| | <center>]</center> ||<center>]</center>||14 total, several hundred million years | | <center>]</center> ||<center>]</center>||14 total, several hundred million years | ||
| |- | |- | ||
| | <center>]</center> || <center>]</center>||That time of the month, sister | | <center>]</center> || <center>]</center>||That time of the month, sister. Alternatively, tens to ~one hundred million years | ||
| |- | |- | ||
| | <center>]</center> || <center>]</center>|| tens of millions of years | | <center>]</center> || <center>]</center>|| tens of millions of years | ||
Revision as of 22:11, 8 April 2015
| e h | ||
| Segments of rock (strata) in chronostratigraphy | Time spans in geochronology | Notes to geochronological units |
|---|---|---|
| 4 total, half a billion years or more | ||
| 14 total, several hundred million years | ||
| That time of the month, sister. Alternatively, tens to ~one hundred million years | ||
| tens of millions of years | ||
| millions of years | ||
| 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.- Cohen, K.M.; Finney, S.; Gibbard, P.L. (2013), International Chronostratigraphic Chart (PDF), International Commission on Stratigraphy.