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|colspan=3|<span style="float:right;"><span class="plainlinksneverexpand">[{{fullurl:Template:Geology_to_Paleobiology|action=edit}} e]  [{{fullurl:Template:Geology_to_Paleobiology|action=history}} h]</span></span><center><big>'''[[Geologic time scale|Units in geochronology and stratigraphy]]'''</big><ref>{{citation | first1=K.M. |last1=Cohen |first2=S. |last2=Finney |first3=P.L. |last3=Gibbard|title=International Chronostratigraphic Chart |year=2013| publisher = International Commission on Stratigraphy |url=http://www.stratigraphy.org/ICSchart/ChronostratChart2013-01.pdf |author-separator=,}}.</ref></center> |
|colspan=3|<span style="float:right;"><span class="plainlinksneverexpand">[{{fullurl:Template:Geology_to_Paleobiology|action=edit}} e]  [{{fullurl:Template:Geology_to_Paleobiology|action=history}} h]</span></span><center><big>'''[[Geologic time scale|Units in geochronology and stratigraphy]]'''</big><ref>{{citation | first1=K.M. |last1=Cohen |first2=S. |last2=Finney |first3=P.L. |last3=Gibbard|title=International Chronostratigraphic Chart |year=2013| publisher = International Commission on Stratigraphy |url=http://www.stratigraphy.org/ICSchart/ChronostratChart2013-01.pdf |author-separator=,}}.</ref></center> |
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!Segments of rock ([[stratum|strata]]) in [[chronostratigraphy]] |
!Segments of rock ([[stratum|strata]]) in [[chronostratigraphy]] |
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!Time spans in [[geochronology]] |
!Time spans in [[geochronology]] |
Revision as of 22:26, 13 January 2014
Segments of rock (strata) in chronostratigraphy | Time spans in geochronology | Notes to geochronological units |
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4 total, half a billion years or more | ||
10 total, several hundred million years | ||
tens of millions of years | ||
millions of years | ||
subdivision of an age, not used by the ICS timescale |
References
- ^ Cohen, K.M.; Finney, S.; Gibbard, P.L. (2013), International Chronostratigraphic Chart (PDF), International Commission on Stratigraphy
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ignored (help).