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Template:Geological history of Earth 
Summary
| Cenozoic Era (present–66.0 Ma) |
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| Mesozoic Era (66.0–252 Ma) |
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| Paleozoic Era (252–539 Ma) |
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| Proterozoic Eon (539 Ma–2.5 Ga) |
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| Archean Eon (2.5–4 Ga) | |||||||||||||
| Hadean Eon (4–4.6 Ga) | |||||||||||||
ka = kiloannum (thousands years ago); Ma = megaannum (millions years ago); Ga = gigaannum (billions years ago). See also: Geologic time scale •  Geology portal •  World portal | |||||||||||||
Template documentation[view] [edit] [history] [purge]Usage guideline edit
By consensus at Wikipedia:WikiProject Geology, this template should only be used on the articles about geological time periods that it links to. It should not be used in categories, nor for extinct taxa, nor geological formations.
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References edit
- Cohen, K.M.; Finney, S.C.; Gibbard, P.L.; Fan, J.-X. (2013). "The ICS International Chronostratigraphic Chart" (PDF). 2017/02. pp. 199–204.
- U.S. Geological Survey Geologic Names Committee. "Divisions of Geologic Time—Major Chronostratigraphic and Geochronologic Units" (PDF). USGS. Fact Sheet 2007-3015. Retrieved 10 March 2013.