This is an old revision of this page, as edited by MarkusQ (talk | contribs) at 21:38, 24 April 2014 (There are 14 eras listed in the body of the article, so saying there are 10 total in the summary is inconsistent.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 21:38, 24 April 2014 by MarkusQ (talk | contribs) (There are 14 eras listed in the body of the article, so saying there are 10 total in the summary is inconsistent.)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)| 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 | ||
| 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
{{citation}}: Unknown parameter|author-separator=ignored (help).