This is an old revision of this page, as edited by 67.61.57.240 (talk) at 19:51, 8 April 2015. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 19:51, 8 April 2015 by 67.61.57.240 (talk)(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 gajillion lol 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.