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#REDIRECT [[Geologic time scale#Table of geologic time]]
<div class="NavHead" style="background-color:#ccccff">{{Tnavbar-collapsible | [[Geologic time scale]] | Geologic time scale}}</div>
 
<div class="NavContent">
 
<!-- This next lines determine how wide the white section of the template should be, followed by the text size in the same part. They must be listed in percentage. -->
 
{| class="wikitable" style="clear:both;margin:0; font-size:95%"
 
|-
 
! [[Supereon (geology)|Supereon]]
 
! [[Eon (geology)|Eon]]
 
! [[Era (geology)|Era]]
 
! [[Period (geology)|Period]]<ref name="faunal-stages">Paleontologists often refer to [[faunal stage]]s rather than geologic (geological) periods.  The stage nomenclature is quite complex. For an excellent time-ordered list of faunal stages, see {{cite web| url=http://flatpebble.nceas.ucsb.edu/cgi-bin/bridge.pl?action=startScale| title=The Paleobiology Database| accessdate=2006-03-19}}</ref>
 
! [[Epoch (geology)|Epoch]]
 
! [[Age (geology)|Age]]<ref name="uncertain-dates" />
 
! Major events
 
! Start, million years ago<ref name="uncertain-dates">Dates are slightly uncertain with differences of a few percent between various sources being common. This is largely due to uncertainties in [[radiometric dating]] and the problem that deposits suitable for radiometric dating seldom occur exactly at the places in the geologic column where they would be most useful. The dates and errors quoted above are according to the [[International Commission on Stratigraphy]] 2012 time scale. Where errors are not quoted, errors are less than the precision of the age given. Dates labeled with a * indicate boundaries where a [[Global Boundary Stratotype Section and Point]] has been internationally agreed upon: see [[List of Global Boundary Stratotype Sections and Points]] for a complete list.</ref>
 
|-
 
|rowspan="101" style="background:#ffffff"| n/a<ref>References to the "Post-Cambrian Supereon" are not universally accepted, and therefore must be considered unofficial.</ref>
 
|rowspan="101" style="background:#b3e2d1"| [[Phanerozoic]]
 
|rowspan="23" style="background:#ffff00"| [[Cenozoic]]<ref name="cenozoic-division">Historically, the [[Cenozoic]] has been divided up into the [[Quaternary]] and [[Tertiary]] sub-eras, as well as the [[Neogene]] and [[Paleogene]] periods. The [http://www.stratigraphy.org/upload/ISChart2009.pdf 2009 version of the ICS time chart] recognizes a slightly extended Quaternary as well as the Paleogene and a truncated Neogene, the Tertiary having been demoted to informal status.</ref>
 
|-
 
|rowspan="5" style="background:#ffff7f"| [[Quaternary]]
 
|style="background:#ffffb3"| [[Holocene]]
 
|style="background:#FFF5EF"|
 
[[Chronozone|chrons]]: [[Subatlantic|Subatlantic]]{{·}}[[Subboreal|Subboreal]]{{·}}[[Atlantic (period)|Atlantic]]{{·}}[[Boreal (period)|Boreal]]{{·}}[[Preboreal]]
 
|rowspan="1" |
 
|style="background:#ffffb3"| 0.0117<ref name="holocene">The start time for the [[Holocene]] epoch is here given as [[Upper Paleolithic|11,700]] [[before present|years ago]]. For further discussion of the dating of this epoch, see [[Holocene]].</ref>
 
|-
 
|rowspan="4" style="background:#ffff62"| [[Pleistocene]]
 
| [[Late Pleistocene|Upper]] (locally [[Tarantian]]{{·}}[[Tyrrhenian Stage|Tyrrhenian]]{{·}}[[Eemian]]{{·}}[[Sangamonian Stage|Sangamonian]])
 
|rowspan="4"|
 
|style="background:#ffff62"| 0.126
 
|-
 
| [[Middle Pleistocene|Middle]] (formerly Ionian)
 
|style="background:#ffff62"| 0.781
 
|-
 
| [[Early Pleistocene|Calabrian]]
 
|style="background:#ffff62"| 1.806<sup>*</sup>
 
|-
 
| [[Gelasian]]
 
|style="background:#ffff62"| 2.588<sup>*</sup>
 
|-
 
|rowspan="8" style="background:#fdcc8a"| [[Neogene]]
 
|rowspan="2" style="background:#feebac"| [[Pliocene]]
 
|rowspan="1"| [[Piacenzian]]/[[Blancan]]
 
|rowspan="2"|
 
|style="background:#feebac"| 3.600<sup>*</sup>
 
|-
 
| [[Zanclean]]
 
|style="background:#feebac"| 5.333<sup>*</sup>
 
|-
 
|rowspan="6" style="background:#ffde00"| [[Miocene]]
 
| [[Messinian]]
 
|rowspan="6"|
 
|style="background:#ffde00"| 7.246<sup>*</sup>
 
|-
 
| [[Tortonian]]
 
|style="background:#ffde00"| 11.62<sup>*</sup>
 
|-
 
| [[Serravallian]]
 
|style="background:#ffde00"| 13.82<sup>*</sup>
 
|-
 
| [[Langhian]]
 
|style="background:#ffde00"| 15.97
 
|-
 
| [[Burdigalian]]
 
|style="background:#ffde00"| 20.44
 
|-
 
| [[Aquitanian age|Aquitanian]]
 
|style="background:#ffde00"| 23.03<sup>*</sup>
 
|-
 
|rowspan="9" style="background:#ffb300"| [[Paleogene]]
 
|rowspan="2" style="background:#eac672"| [[Oligocene]]
 
| [[Chattian]]
 
|rowspan="2"|
 
|style="background:#eac672"| 28.1
 
|-
 
| [[Rupelian]]
 
|style="background:#eac672"| 33.9<sup>*</sup>
 
|-
 
|rowspan="4" style="background:#eaad43"| [[Eocene]]
 
| [[Priabonian]]
 
|rowspan="4"|
 
|style="background:#eaad43"| 38.0
 
|-
 
| [[Bartonian]]
 
|style="background:#eaad43"| 41.3
 
|-
 
| [[Lutetian]]
 
|style="background:#eaad43"| 47.8<sup>*</sup>
 
|-
 
| [[Ypresian]]
 
|style="background:#eaad43"| 56.0<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#eb9301"| [[Paleocene]]
 
| [[Thanetian]]
 
|rowspan="3"|
 
|style="background:#eb9301"| 59.2<sup>*</sup>
 
|-
 
| [[Selandian]]
 
|style="background:#eb9301"| 61.6<sup>*</sup>
 
|-
 
| [[Danian]]
 
|style="background:#eb9301"| 66.0<sup>*</sup>
 
|-
 
|rowspan="30" style="background:#7fad51"| [[Mesozoic]]
 
|rowspan="12" style="background:#7fc31c"| [[Cretaceous]]
 
|rowspan="6" style="background:#def197"| [[Late Cretaceous|Upper]]
 
| [[Maastrichtian]]
 
|rowspan="12"|
 
|style="background:#def197"| 72.1 ±&nbsp;0.2<sup>*</sup>
 
|-
 
| [[Campanian]]
 
|style="background:#def197"| 83.6 ±&nbsp;0.2
 
|-
 
| [[Santonian]]
 
|style="background:#def197"| 86.3 ±&nbsp;0.5
 
|-
 
| [[Coniacian]]
 
|style="background:#def197"| 89.8 ±&nbsp;0.3
 
|-
 
| [[Turonian]]
 
|style="background:#def197"| 93.9<sup>*</sup>
 
|-
 
| [[Cenomanian]]
 
|style="background:#def197"| 100.5<sup>*</sup>
 
|-
 
|rowspan="6" style="background:#b3df7f"| [[Early Cretaceous|Lower]]
 
| [[Albian]]
 
|style="background:#b3df7f"| c. 113.0
 
|-
 
| [[Aptian]]
 
|style="background:#b3df7f"| c. 125.0
 
|-
 
| [[Barremian]]
 
|style="background:#b3df7f"| c. 129.4
 
|-
 
| [[Hauterivian]]
 
|style="background:#b3df7f"| c. 132.9
 
|-
 
| [[Valanginian]]
 
|style="background:#b3df7f"| c. 139.8
 
|-
 
| [[Berriasian]]
 
|style="background:#b3df7f"| c. 145.0
 
|-
 
|rowspan="11" style="background:#4db47e"| [[Jurassic]]
 
|rowspan="3" style="background:#ccebc5"| [[Late Jurassic|Upper]]
 
| [[Tithonian]]
 
|rowspan="11"|
 
|style="background:#ccebc5"| 152.1 ±&nbsp;0.9
 
|-
 
| [[Kimmeridgian]]
 
|style="background:#ccebc5"| 157.3 ±&nbsp;1.0
 
|-
 
| [[Oxfordian stage|Oxfordian]]
 
|style="background:#ccebc5"| 163.5 ±&nbsp;1.0
 
|-
 
|rowspan="4" style="background:#7fca93"| [[Middle Jurassic|Middle]]
 
| [[Callovian]]
 
|style="background:#7fca93"| 166.1 ±&nbsp;1.2
 
|-
 
| [[Bathonian]]
 
|style="background:#7fca93"| 168.3 ±&nbsp;1.3<sup>*</sup>
 
|-
 
| [[Bajocian]]
 
|style="background:#7fca93"| 170.3 ±&nbsp;1.4<sup>*</sup>
 
|-
 
| [[Aalenian]]
 
|style="background:#7fca93"| 174.1 ±&nbsp;1.0<sup>*</sup>
 
|-
 
|rowspan="4" style="background:#66c292"| [[Early Jurassic|Lower]]
 
| [[Toarcian]]
 
|style="background:#66c292"| 182.7 ±&nbsp;0.7
 
|-
 
| [[Pliensbachian]]
 
|style="background:#66c292"| 190.8 ±&nbsp;1.0<sup>*</sup>
 
|-
 
| [[Sinemurian]]
 
|style="background:#66c292"| 199.3 ±&nbsp;0.3<sup>*</sup>
 
|-
 
| [[Hettangian]]
 
|style="background:#66c292"| 201.3 ±&nbsp;0.2<sup>*</sup>
 
|-
 
|rowspan="7" style="background:#67c3b7"| [[Triassic]]
 
|rowspan="3" style="background:#ccece1"| [[Late Triassic|Upper]]
 
| [[Rhaetian]]
 
|rowspan="7"|
 
|style="background:#ccece1"| c. 208.5
 
|-
 
| [[Norian]]
 
|style="background:#ccece1"| c. 228
 
|-
 
| [[Carnian]]
 
|style="background:#ccece1"| c. 235<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#99d7be"| [[Middle Triassic|Middle]]
 
| [[Ladinian]]
 
|style="background:#99d7be"| c. 242<sup>*</sup>
 
|-
 
| [[Anisian]]
 
|style="background:#99d7be"| 247.2
 
|-
 
|rowspan="2" style="background:#67b39f"| [[Early Triassic|Lower]]
 
| [[Olenekian]]
 
|style="background:#67b39f"| 251.2
 
|-
 
| [[Induan]]
 
|style="background:#67b39f"| 252.2 ±&nbsp;0.5<sup>*</sup>
 
|-
 
|rowspan="48" style="background:#80b5d5"| [[Paleozoic]]
 
|rowspan="9" style="background:#67c6de"| [[Permian]]
 
|rowspan="2" style="background:#b3e3ee"| [[Lopingian]]
 
| [[Changhsingian]]
 
|rowspan="9"|
 
|style="background:#b3e3ee"| 254.2 ±&nbsp;0.1<sup>*</sup>
 
|-
 
| [[Wuchiapingian]]
 
|style="background:#b3e3ee"| 259.9 ±&nbsp;0.4<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#99d8d8"| [[Guadalupian]]
 
| [[Capitanian]]
 
|style="background:#99d8d8"| 265.1 ±&nbsp;0.4<sup>*</sup>
 
|-
 
| [[Wordian|Wordian/Kazanian]]
 
|style="background:#99d8d8"| 268.8 ±&nbsp;0.5<sup>*</sup>
 
|-
 
| [[Roadian|Roadian/Ufimian]]
 
|style="background:#99d8d8"| 272.3 ±&nbsp;0.5<sup>*</sup>
 
|-
 
|rowspan="4" style="background:#80cec9"| [[Cisuralian]]
 
| [[Kungurian]]
 
|style="background:#80cec9"| 279.3 ±&nbsp;0.6
 
|-
 
| [[Artinskian]]
 
|style="background:#80cec9"| 290.1 ±&nbsp;0.1
 
|-
 
| [[Sakmarian]]
 
|style="background:#80cec9"| 295.5 ±&nbsp;0.4
 
|-
 
| [[Asselian]]
 
|style="background:#80cec9"| 298.9 ±&nbsp;0.2<sup>*</sup>
 
|-
 
|rowspan="4" style="background:#689fca"| [[Carboniferous|Carbon-<br />iferous]]<ref name="carboniferous">In North America, the Carboniferous is subdivided into [[Mississippian]] and [[Pennsylvanian]] Periods.</ref>'''/'''<br />[[Pennsylvanian|Pennsyl-<br />vanian]]
 
|rowspan="2" style="background:#689fca"| [[Late Pennsylvanian|Upper]]
 
| [[Gzhelian]]
 
|rowspan="4"|
 
|style="background:#689fca"| 303.7 ±&nbsp;0.1
 
|-
 
| [[Kasimovian]]
 
|style="background:#689fca"| 307.0 ±&nbsp;0.1
 
|-
 
|style="background:#689fca"| [[Middle Pennsylvanian|Middle]]
 
| [[Moscovian (Carboniferous)|Moscovian]]
 
|style="background:#689fca"| 315.2 ±&nbsp;0.2
 
|-
 
|style="background:#689fca"| [[Early Pennsylvanian|Lower]]
 
| [[Bashkirian]]
 
|style="background:#689fca"| 323.2 ±&nbsp;0.4<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#8091ad"| [[Carboniferous|Carbon-<br />iferous]]<ref name="carboniferous" />'''/'''<br />[[Mississippian|Missis-<br />sippian]]
 
|style="background:#8091ad"| [[Late Mississippian|Upper]]
 
| [[Serpukhovian]]
 
|rowspan="3"|
 
|style="background:#8091ad"| 330.9 ±&nbsp;0.2
 
|-
 
|style="background:#8091ad"| [[Middle Mississippian|Middle]]
 
| [[Viséan]]
 
|style="background:#8091ad"| 346.7 ±&nbsp;0.4<sup>*</sup>
 
|-
 
|style="background:#8091ad"| [[Early Mississippian|Lower]]
 
| [[Tournaisian]]
 
|style="background:#8091ad"| 358.9 ±&nbsp;0.4<sup>*</sup>
 
|-
 
|rowspan="7" style="background:#9999c9"| [[Devonian]]
 
|rowspan="2" style="background:#cbbddc"| [[Late Devonian|Upper]]
 
| [[Famennian]]
 
|rowspan="7"|
 
|style="background:#cbbddc"| 372.2 ±&nbsp;1.6<sup>*</sup>
 
|-
 
| [[Frasnian]]
 
|style="background:#cbbddc"| 382.7 ±&nbsp;1.6<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#9983be"| [[Middle Devonian|Middle]]
 
| [[Givetian]]
 
|style="background:#9983be"| 387.7 ±&nbsp;0.8<sup>*</sup>
 
|-
 
| [[Eifelian]]
 
|style="background:#9983be"| 393.3 ±&nbsp;1.2<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#807dba"| [[Early Devonian|Lower]]
 
| [[Emsian]]
 
|style="background:#807dba"| 407.6 ±&nbsp;2.6<sup>*</sup>
 
|-
 
| [[Pragian]]
 
|style="background:#807dba"| 410.8 ±&nbsp;2.8<sup>*</sup>
 
|-
 
| [[Lochkovian]]
 
|style="background:#807dba"| 419.2 ±&nbsp;3.2<sup>*</sup>
 
|-
 
|rowspan="8" style="background:#b172b6"| [[Silurian]]
 
|style="background:#e9c7e2"| [[Pridoli epoch|Pridoli]]
 
| ''no faunal stages defined''  (Stage 8)
 
|rowspan="8"|
 
|style="background:#e9c7e2"| 423.0 ±&nbsp;2.3<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#caa7d1"| [[Ludlow epoch|Ludlow]]/[[Cayugan]]
 
| [[Ludfordian]]
 
|style="background:#caa7d1"| 425.6 ±&nbsp;0.9<sup>*</sup>
 
|-
 
| [[Gorstian]]
 
|style="background:#caa7d1"| 427.4 ±&nbsp;0.5<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#b189b3"| [[Wenlock epoch|Wenlock]]
 
|[[Homerian]]/[[Lockportian]]
 
|style="background:#b189b3"| 430.5 ±&nbsp;0.7<sup>*</sup>
 
|-
 
| [[Sheinwoodian]]/[[Tonawandan]]
 
|style="background:#b189b3"| 433.4 ±&nbsp;0.8<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#9858a8"| [[Llandovery epoch|Llandovery]]/<br/>[[Silurian|Alexandrian]]
 
| [[Telychian]]/[[Ontarian]]
 
|style="background:#9858a8"| 438.5 ±&nbsp;1.1<sup>*</sup>
 
|-
 
| [[Aeronian]]
 
|style="background:#9858a8"| 440.8 ±&nbsp;1.2<sup>*</sup>
 
|-
 
| [[Rhuddanian]]
 
|style="background:#9858a8"| 443.4 ±&nbsp;1.5<sup>*</sup>
 
|-
 
|rowspan="7" style="background:#f981a6"| [[Ordovician]]
 
|rowspan="3" style="background:#fbb4bd"| [[Late Ordovician|Upper]]
 
| [[Hirnantian]]
 
|rowspan="7"|
 
|style="background:#fbb4bd"| 445.2&nbsp;±&nbsp;1.4<sup>*</sup>
 
|-
 
| [[Katian]]
 
|style="background:#fbb4bd"| 453.0&nbsp;±&nbsp;0.7<sup>*</sup>
 
|-
 
| [[Sandbian]]
 
|style="background:#fbb4bd"| 458.4&nbsp;±&nbsp;0.9<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#fa9ab1"| [[Middle Ordovician|Middle]]
 
| [[Darriwilian]]
 
|style="background:#fa9ab1"| 467.3&nbsp;±&nbsp;1.1<sup>*</sup>
 
|-
 
| [[Dapingian]]
 
|style="background:#fa9ab1"| 470.0&nbsp;±&nbsp;1.4<sup>*</sup>
 
|-
 
|rowspan="2" style="background:#e67da4"| [[Early Ordovician|Lower]]
 
| [[Floian]]<br />(formerly [[Arenig]])
 
|style="background:#e67da4"| 477.7&nbsp;±&nbsp;1.4<sup>*</sup>
 
|-
 
| [[Tremadocian]]
 
|style="background:#e67da4"| 485.4&nbsp;±&nbsp;1.9<sup>*</sup>
 
|-
 
|rowspan="10" style="background:#fb805f"| [[Cambrian]]
 
|rowspan="3" style="background:#fdcdb8"| [[Furongian]]
 
| [[Cambrian#Subdivisions|Stage 10]]
 
|rowspan="10"|
 
|style="background:#fdcdb8"| c. 489.5
 
|-
 
| [[Jiangshanian]]
 
|style="background:#fdcdb8"| c. 494<sup>*</sup>
 
|-
 
| [[Paibian]]
 
|style="background:#fdcdb8"| c. 497<sup>*</sup>
 
|-
 
|rowspan="3" style="background:#e8ae97"| [[Middle Cambrian|Series 3]]
 
| [[Guzhangian]]
 
|style="background:#e8ae97"| c. 500.5<sup>*</sup>
 
|-
 
| [[Drumian]]
 
|style="background:#e8ae97"| c. 504.5<sup>*</sup>
 
|-
 
| [[Cambrian#Subdivisions|Stage 5]]
 
|style="background:#e8ae97"| c. 509
 
|-
 
|rowspan="2" style="background:#e77c72"| [[Middle Cambrian|Series 2]]
 
| [[Cambrian#Subdivisions|Stage 4]]
 
|style="background:#e77c72"| c. 514
 
|-
 
| [[Cambrian#Subdivisions|Stage 3]]
 
|style="background:#e77c72"| c. 521
 
|-
 
|rowspan="2" style="background:#e77c72"| [[Terreneuvian]]
 
| [[Cambrian Stage 2|Stage 2]]
 
|style="background:#e77c72"| c. 529
 
|-
 
| [[Fortunian]]
 
|style="background:#e77c72"| 541.0&nbsp;±&nbsp;1.0<sup>*</sup>
 
|-
 
|rowspan="18" style="background:#b0c4d8"| [[Precambrian|Precam-<br />brian]]<ref name="aka-cryptozoic">The [[Precambrian]] is also known as Cryptozoic.</ref>
 
|rowspan="10" style="background:#ccd891"| [[Proterozoic|Proter-<br />ozoic]]<ref name="Precambrian-Time">The [[Proterozoic]], [[Archean]] and [[Hadean]] are often collectively referred to as the [[Precambrian|Precambrian Time]] or sometimes, also the Cryptozoic.</ref>
 
|rowspan="3" style="background:#caa595"| [[Neoproterozoic|Neo-<br />proterozoic]]<ref name="Precambrian-Time" />
 
|style="background:#ead8bc"| [[Ediacaran]]
 
|colspan="3"|
 
|style="background:#ead8bc"| c. 635<sup>*</sup>
 
|-
 
|style="background:#dcabaa"| [[Cryogenian]]
 
|colspan="3"|
 
|style="background:#dcabaa"| 850<ref name="absolute-age">Defined by absolute age ([[Global Standard Stratigraphic Age]]).</ref>
 
|-
 
|style="background:#cba46c"| [[Tonian]]
 
|colspan="3"|
 
|style="background:#cba46c"| 1000<ref name="absolute-age" />
 
|-
 
|rowspan="3" style="background:#ddc288"| [[Mesoproterozoic|Meso-<br />proterozoic]]<ref name="Precambrian-Time" />
 
|style="background:#ddc288"| [[Stenian]]
 
|colspan="3"|
 
|style="background:#ddc288"| 1200<ref name="absolute-age" />
 
|-
 
|style="background:#ddc288"| [[Ectasian]]
 
|colspan="3"|
 
|style="background:#ddc288"| 1400<ref name="absolute-age" />
 
|-
 
|style="background:#ddc288"| [[Calymmian]]
 
|colspan="3"|
 
|style="background:#ddc288"| 1600<ref name="absolute-age" />
 
|-
 
|rowspan="4" style="background:#b3b25e"| [[Paleoproterozoic|Paleo-<br />proterozoic]]<ref name="Precambrian-Time" />
 
|style="background:#b3b25e"| [[Statherian]]
 
|colspan="3"|
 
|style="background:#b3b25e"| 1800<ref name="absolute-age" />
 
|-
 
|style="background:#b3b25e"| [[Orosirian]]
 
|colspan="3"|
 
|style="background:#b3b25e"| 2050<ref name="absolute-age" />
 
|-
 
|style="background:#b3b25e"| [[Rhyacian]]
 
|colspan="3"|
 
|style="background:#b3b25e"| 2300<ref name="absolute-age" />
 
|-
 
|style="background:#b3b25e"| [[Siderian]]
 
|colspan="3"|
 
|style="background:#b3b25e"| 2500<ref name="absolute-age" />
 
|-
 
|rowspan="4" style="background:#99adac"| [[Archean]]<ref name="Precambrian-Time" />
 
|style="background:#cbcdc8"| [[Neoarchean]]<ref name="Precambrian-Time" />
 
|colspan="4"|
 
|style="background:#cbcdc8"| 2800<ref name="absolute-age" />
 
|-
 
|style="background:#b2b5af"| [[Mesoarchean]]<ref name="Precambrian-Time" />
 
|colspan="4"|
 
|style="background:#b2b5af"| 3200<ref name="absolute-age" />
 
|-
 
|style="background:#999791"| [[Paleoarchean]]<ref name="Precambrian-Time" />
 
|colspan="4"|
 
|style="background:#999791"| 3600<ref name="absolute-age" />
 
|-
 
|style="background:#809090"| [[Eoarchean]]<ref name="Precambrian-Time" />
 
|colspan="4"|
 
|style="background:#809090"| 4000
 
|-
 
|rowspan="4" style="background:#809090"| [[Hadean]]<br /><ref name="Precambrian-Time" /><ref name="hadeon-not-formal">Though commonly used, the [[Hadean]] is not a formal eon and no lower bound for the Archean and Eoarchean have been agreed upon. The Hadean has also sometimes been called the Priscoan or the Azoic. Sometimes, the Hadean can be found to be subdivided according to the [[lunar geologic time scale]]. These eras include the [[Cryptic era|Cryptic]] and [[Basin Groups]] (which are subdivisions of the [[Pre-Nectarian]] era), [[Nectarian]], and [[Early Imbrian]] units.</ref>
 
|style="background:#809090"| [[Early Imbrian]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names">These unit names were taken from the [[Lunar geologic timescale]] and refer to geologic events that did not occur on Earth. Their use for Earth geology is unofficial. Note that their start times do not dovetail perfectly with the later, terrestrially defined boundaries.</ref>
 
|colspan="4"|
 
|style="background:#809090"| c.3850
 
|-
 
|style="background:#809090"| [[Nectarian]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names" />
 
|colspan="4"|
 
|style="background:#809090"| c.3920
 
|-
 
|style="background:#809090"| [[Basin Groups]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names" />
 
|colspan="4"|
 
|style="background:#809090"| c.4150
 
|-
 
|style="background:#809090"| [[Cryptic era|Cryptic]]<ref name="Precambrian-Time" /><ref name="Lunar-geologic-timescale-names" />
 
|colspan="4"|
 
|style="background:#809090"| c.4600
 
|}</div>
 
<includeonly>
 
</div>
 
</includeonly><noinclude>
 
  
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</div>
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{{R to main namespace}}
</div>
+
{{R to section}}
[[Category:Historical geology|{{PAGENAME}}]]
+
}}
[[Category:Historical period templates|Geologic time scale]]
 
[[Category:geology templates|{{PAGENAME}}]]
 
[[Category:Historical geology|{{PAGENAME}}]]
 
 
 
[[ar:قالب:المقياس الزمني الجيولوجي]]
 
[[es:Plantilla:Escala temporal geológica]]
 
[[hi:भूवैज्ञानिक समय-मान]]
 
[[pt:Predefinição:Tempo geológico]]
 
[[zh:Template:Geologic time scale]]
 
</noinclude>
 

Latest revision as of 17:11, 3 November 2018