| Revision as of 19:42, 19 June 2008 editFabartus (talk | contribs)Extended confirmed users21,651 edits --{geology-stub} and added chronozones← Previous edit | Revision as of 19:52, 19 June 2008 edit undoWoudloper (talk | contribs)Extended confirmed users, Pending changes reviewers, Rollbackers2,915 editsm chronozone & chron (the words can have more than one meaning though, needs more attention)Next edit → | ||
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| | ] || ]|| Some familiar names | | ] || ]|| Some familiar names | ||
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| ] || ] || tens of millions of years | ||
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| |] || ] | |] || ] || millions of years | ||
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| ⚫ | |] || ] || only in more recent strata<big><big>'''<nowiki>*</nowiki>'''</big></big> | ||
| |colspan=3|Units used that are outside the hierarchy of varying precision: ] | |||
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| |colspan=3|<big><big>'''<nowiki>*</nowiki>'''</big></big> Most and ''the most time specific'' time divisions<ref | |colspan=3|<big><big>'''<nowiki>*</nowiki>'''</big></big> Most and ''the most time specific'' time divisions<ref | ||
Revision as of 19:52, 19 June 2008
| e h | ||
strata units of the geologic record |
units of the geological time system |
Main article: geologic time scale |
| Eonothem | Eon (geology) | largest spans of years |
| Erathem | Era (geology) | 3 total, hundreds of millions of years |
| System (geology) | Period (geology) | Some familiar names |
| Series (geology) | Epoch (geology) | tens of millions of years |
| Stage (geology) | Age (geology) | millions of years |
| Chronozone | Chron | only in more recent strata* |
| * Most and the most time specific time divisions | ||
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- International Commission on Stratigraphy. "International Stratigraphic Chart" (PDF). Retrieved 2008-06-17.