GeoWhen Database  

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                          ICS General         ICS Specific      North America       Europe           China               Australia          Russian-Kazakhian      Japan      South Africa   California    New Zealand    
    4567.17 +/- 0.7 Ma: Hadean           - Hadean             -                -              -                 -                         -                   -             -              -            -              
               4000 Ma:                  -                    -                -              -                 -                         -                   -             - Swazian      -            -              
               3800 Ma: Archean          - Eoarchean          -                -              - Qianxin         -                         -                   -             -              -            -              
         3600 +/- 0 Ma:                  - Paleoarchean       -                -              -                 -                         -                   -             -              -            -              
               3400 Ma:                  -                    -                -              -     use ICS     -                         -                   -             -              -            -              
         3200 +/- 0 Ma:                  - Mesoarchean        -                -              -     use ICS     -                         -                   -             -              -            -              
               3100 Ma:                  -                    -                -              - Fupingan        -                         -                   -             -              -            -              
               3000 Ma:                  -                    -                -              -                 -                         -                   -             - Randian      -            -              
         2800 +/- 0 Ma:                  - Neoarchean         -                -              -                 -                         -                   -             -              -            -              
               2600 Ma:                  -                    -                -              - Wutaian         -                         -                   -             -              -            -              
         2500 +/- 0 Ma: Paleoproterozoic - Siderian           - Aphebian       -              -                 - Nullaginian             -                   -             - Vaalian      -            -              
               2350 Ma:                  -                    -                -              - Luliangian      -                         -                   -             -              -            -              
         2300 +/- 0 Ma:                  - Rhyacian           -                -              -                 -                         -                   -             -              -            -              
         2050 +/- 0 Ma:                  - Orosirian          -                -              -                 -                         -                   -             - Mokolian     -            -              
         1800 +/- 0 Ma:                  - Statherian         -                -              -                 - Carpentarian            -                   -             -              -            -              
               1750 Ma:                  -                    -                -              - Jinningian      -                         -                   -             -              -            -              
         1600 +/- 0 Ma: Mesoproterozoic  - Calymmian          - Helikian       -              -                 -                         -                   -             -              -            -              
         1400 +/- 0 Ma:                  - Ectasian           -                -              -                 -                         -                   -             -              -            -              
               1300 Ma:                  -                    -                -              -                 - Adelaidean              -                   -             -              -            -              
         1200 +/- 0 Ma:                  - Stenian            -                -              -                 -                         -                   -             -              -            -              
         1000 +/- 0 Ma: Neoproterozoic   - Tonian             -                -              -                 -                         -                   -             -              -            -              
                900 Ma:                  -                    -                -              -                 -                         -                   -             - Namibian     -            -              
          850 +/- 0 Ma:                  - Cryogenian         - Hadrynian      -              -                 -                         -                   -             -              -            -              
                800 Ma:                  -                    -                -              - Sinian          -                         -                   -             -              -            -              
         630 +5/-30 Ma:                  - Ediacaran          -                -              -                 -                         -                   -             -              -            -              
        542 +/- 0.3 Ma: Cambrian         -      no stage      - Waucoban       - Caerfai      - Meishuchuan     -         use ICS         - Nemakit-Daldynian -             -   use ICS    -            -              
                534 Ma:                  -      no stage      -                -              -                 -         use ICS         - Tommotian         -             -   use ICS    -            -              
                532 Ma:                  -      no stage      -                -              - Qungzusian      -         use ICS         -                   -             -   use ICS    -            -              
                530 Ma:                  -      no stage      -                -              -                 -         use ICS         - Atdabanian        -             -   use ICS    -            -              
                524 Ma:                  -      no stage      -                -              -                 -         use ICS         - Botomian          -             -   use ICS    -            -              
                523 Ma:                  -      no stage      -                -              - Changlangpuan   -         use ICS         -                   -             -   use ICS    -            -              
                520 Ma:                  -      no stage      -                -              -                 - Ordian                  -                   -             -   use ICS    -            -              
              518.5 Ma:                  -      no stage      -                -              -                 -                         - Toyonian          -             -   use ICS    -            -              
                518 Ma:                  -      no stage      -                -              - Longwangmioan   -                         -                   -             -   use ICS    -            -              
          513 +/- 2 Ma:                  -      no stage      - Albertan       - St. David's  - Maozhangian     -                         - Amgan             -             -   use ICS    -            -              
                510 Ma:                  -      no stage      -                -              -                 - Templetonian            -                   -             -   use ICS    -            -              
                509 Ma:                  -      no stage      -                -              - Zuzhuangian     -                         -                   -             -   use ICS    -            -              
                508 Ma:                  -      no stage      -                -              -                 - Florian                 -                   -             -   use ICS    -            -              
                506 Ma:                  -      no stage      -                -              -                 - Undillian               -                   -             -   use ICS    -            -              
                505 Ma:                  -      no stage      -                -              - Zhungxian       -                         -                   -             -   use ICS    -            -              
                504 Ma:                  -      no stage      -                -              -                 - Boomerangian            -                   -             -   use ICS    -            -              
                502 Ma:                  -      no stage      -                -              -                 -                         - Mayan             -             -   use ICS    -            -              
          501 +/- 2 Ma:                  - Paibian            - Croixian       - Merioneth    - Gushanian       - Mindyallan              - Ayusokkanian      -             -   use ICS    -            -              
                497 Ma:                  -                    -                -              -                 - Idamean                 -                   -             -   use ICS    -            -              
              496.8 Ma:                  -                    -                -              - Changshanian    -                         -                   -             -   use ICS    -            -              
                496 Ma:                  -      no stage      -                -              -                 -                         -                   -             -   use ICS    -            -              
              494.5 Ma:                  -      no stage      -                -              -                 -                         - Sakian            -             -   use ICS    -            -              
                494 Ma:                  -      no stage      -                -              -                 -         use ICS         -                   -             -   use ICS    -            -              
                493 Ma:                  -      no stage      -                -              -                 -         use ICS         - Aksayan           -             -   use ICS    -            -              
              492.5 Ma:                  -      no stage      -                -              - Fengshanian     -         use ICS         -                   -             -   use ICS    -            -              
              491.5 Ma:                  -      no stage      -                -              -                 -         use ICS         - Batyrbayan        -             -   use ICS    -            -              
                491 Ma:                  -      no stage      -                -              -                 - Payntonian              -                   -             -   use ICS    -            -              
      488.3 +/- 1.7 Ma: Ordovician       - Tremadocian        - Canadian       - Cressagian   - Lianghekouan    - Datsonian               -      use ICS      -             -   use ICS    -            -              
                486 Ma:                  -                    -                - Migneintian  -                 -                         -      use ICS      -             -   use ICS    -            -              
                485 Ma:                  -                    -                -              -                 - Warendian/Lancefieldian -      use ICS      -             -   use ICS    -            -              
      478.6 +/- 1.7 Ma:                  - Arenig             -                - Moridunian   - Honghuayuanian  -                         -      use ICS      -             -   use ICS    -            -              
                475 Ma:                  -                    -                - Whitlandian  -                 - Bendigonian             -      use ICS      -             -   use ICS    -            -              
              473.5 Ma:                  -                    -                - Fennian      -                 -                         -      use ICS      -             -   use ICS    -            -              
                473 Ma:                  -                    -                -              -                 - Chewtonian              -      use ICS      -             -   use ICS    -            -              
                472 Ma:                  -                    -                -              - Dawanian        -                         -      use ICS      -             -   use ICS    -            -              
      471.8 +/- 1.6 Ma:                  - Ordovician III     - White Rockian  - Abereiddian  - Guniutanian     -                         -      use ICS      -             -   use ICS    -            -              
                471 Ma:                  -                    -                -              -                 - Castlemanian            -      use ICS      -             -   use ICS    -            -              
                470 Ma:                  -                    -                -              -                 - Ypeenian                -      use ICS      -             -   use ICS    -            -              
      468.1 +/- 1.6 Ma:                  - Darriwilian        -                -              -                 - Darriwilian             -      use ICS      -             -   use ICS    -            -              
                464 Ma:                  -                    -                - Llandeilian  - Miaopoan        -                         -      use ICS      -             -   use ICS    -            -              
                462 Ma:                  -                    - Mohawkian      -              -                 -                         -      use ICS      -             -   use ICS    -            -              
      460.9 +/- 1.6 Ma:                  - Ordovician V       -                - Aurelucian   - Baotan          - Gisbornian              -      use ICS      -             -   use ICS    -            -              
                457 Ma:                  -                    -                - Burrellian   -                 -                         -      use ICS      -             -   use ICS    -            -              
                456 Ma:                  -                    -                -              -                 - Eastonian               -      use ICS      -             -   use ICS    -            -              
      455.8 +/- 1.6 Ma:                  - Ordovician VI      -                -              -                 -                         -      use ICS      -             -   use ICS    -            -              
                455 Ma:                  -                    -                - Cheneyan     -                 -                         -      use ICS      -             -   use ICS    -            -              
              454.5 Ma:                  -                    -                -              - Linxiangian     -                         -      use ICS      -             -   use ICS    -            -              
                452 Ma:                  -                    -                - Streffordian -                 -                         -      use ICS      -             -   use ICS    -            -              
                451 Ma:                  -                    - Cincinnatian   -              -                 -                         -      use ICS      -             -   use ICS    -            -              
                450 Ma:                  -                    -                -              -                 - Bolindian               -      use ICS      -             -   use ICS    -            -              
                449 Ma:                  -                    -                - Pusgillian   - Wufengian       -                         -      use ICS      -             -   use ICS    -            -              
              447.5 Ma:                  -                    -                - Cautleyan    -                 -                         -      use ICS      -             -   use ICS    -            -              
              446.5 Ma:                  -                    -                - Rawtheyan    -                 -                         -      use ICS      -             -   use ICS    -            -              
      445.6 +/- 1.5 Ma:                  - Hirnantian         -                -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
      443.7 +/- 1.5 Ma: Silurian         - Rhuddanian         - Medinan        -   use ICS    - Longmaxian      - Keiloran                -      use ICS      -             -   use ICS    -            -              
        439 +/- 1.8 Ma:                  - Aeronian           -                -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
                438 Ma:                  -                    - Niagaran       -   use ICS    - Shinulanian     -                         -      use ICS      -             -   use ICS    -            -              
        436 +/- 1.9 Ma:                  - Telychian          -                -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
                433 Ma:                  -                    -                -   use ICS    - Baishaean       - Eildonian               -      use ICS      -             -   use ICS    -            -              
                429 Ma:                  -                    -                -   use ICS    - Xiushanian      -                         -      use ICS      -             -   use ICS    -            -              
      428.2 +/- 2.3 Ma:                  - Sheinwoodian       -                -   use ICS    -                 - Melbournian             -      use ICS      -             -   use ICS    -            -              
      426.2 +/- 2.4 Ma:                  - Homerian           -                -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
              425.5 Ma:                  -                    -                -   use ICS    - Guandian        -                         -      use ICS      -             -   use ICS    -            -              
      422.9 +/- 2.5 Ma:                  - Gorstian           -                -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
                422 Ma:                  -                    -                -   use ICS    - Miaogoalingian  -                         -      use ICS      -             -   use ICS    -            -              
      421.3 +/- 2.6 Ma:                  - Ludfordian         - Cayugan        -   use ICS    -                 -                         -      use ICS      -             -   use ICS    -            -              
      418.7 +/- 2.7 Ma:                  - Pridoli            -                -   use ICS    - Yulongsian      -                         -      use ICS      -             -   use ICS    -            -              
        416 +/- 2.8 Ma: Devonian         - Lochkovian         - Ulsterian      -   use ICS    - Lianhuashanian  -         use ICS         -      use ICS      -             -   use ICS    -            -              
                413 Ma:                  -                    -                -   use ICS    - Nagaolingian    -         use ICS         -      use ICS      -             -   use ICS    -            -              
      411.2 +/- 2.8 Ma:                  - Praghian           -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                410 Ma:                  -                    -                -   use ICS    - Yujianian       -         use ICS         -      use ICS      -             -   use ICS    -            -              
        407 +/- 2.8 Ma:                  - Emsian             -                -   use ICS    - Sipaian         -         use ICS         -      use ICS      -             -   use ICS    -            -              
      397.5 +/- 2.7 Ma:                  - Eifelian           -                -   use ICS    - Yingtangian     -         use ICS         -      use ICS      -             -   use ICS    -            -              
      391.8 +/- 2.7 Ma:                  - Givetian           - Erian          -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
              391.4 Ma:                  -                    -                -   use ICS    - Dongganglingian -         use ICS         -      use ICS      -             -   use ICS    -            -              
                388 Ma:                  -                    - Senecan        -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      385.3 +/- 2.6 Ma:                  - Frasnian           -                -   use ICS    - Shetianqiaoan   -         use ICS         -      use ICS      -             -   use ICS    -            -              
      374.5 +/- 2.6 Ma:                  - Famennian          -                -   use ICS    - Xikuangshanian  -         use ICS         -      use ICS      -             -   use ICS    -            -              
                370 Ma:                  -                    - Chatauquan     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      359.2 +/- 2.5 Ma: Carboniferous    - Tournaisian        - Kinderhookian  -   use ICS    - Shaodongian     -         use ICS         -      use ICS      -             -   use ICS    -            -              
              349.5 Ma:                  -                    -                -   use ICS    - Yanguan         -         use ICS         -      use ICS      -             -   use ICS    -            -              
                348 Ma:                  -                    - Osagean        -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      345.3 +/- 2.1 Ma:                  - Visean             -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                345 Ma:                  -                    -                -   use ICS    - Datangian       -         use ICS         -      use ICS      -             -   use ICS    -            -              
                340 Ma:                  -                    - Meramecian     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                333 Ma:                  -                    - Chesterian     -   use ICS    - Dewuan          -         use ICS         -      use ICS      -             -   use ICS    -            -              
      326.4 +/- 1.6 Ma:                  - Serpukhovian       -                - Namurian     -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      318.1 +/- 1.3 Ma:                  - Bashkirian         - Morrowan       -              - Huashibanian    -         use ICS         -      use ICS      -             -   use ICS    -            -              
                315 Ma:                  -                    -                - Westphalian  -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
              314.5 Ma:                  -                    -                -              -                 -         use ICS         - Cheremshanskian   -             -   use ICS    -            -              
              313.4 Ma:                  -                    -                -              -                 -         use ICS         - Melekesskian      -             -   use ICS    -            -              
                313 Ma:                  -                    -                -              - Dalanian        -         use ICS         -                   -             -   use ICS    -            -              
      311.7 +/- 1.1 Ma:                  - Moscovian          - Atokan/Derryan -              -                 -         use ICS         - Vereiskian        -             -   use ICS    -            -              
                310 Ma:                  -                    -                -              - Mapingian       -         use ICS         -                   -             -   use ICS    -            -              
              309.2 Ma:                  -                    -                -              -                 -         use ICS         - Kashirskian       -             -   use ICS    -            -              
                308 Ma:                  -                    - Desmoinian     -              -                 -         use ICS         - Podolskian        -             -   use ICS    -            -              
              307.2 Ma:                  -                    -                -              -                 -         use ICS         - Myachkovskian     -             -   use ICS    -            -              
        306.5 +/- 1 Ma:                  - Kasimovian         - Missourian     - Stephanian   -                 -         use ICS         - Krevyakinskian    -             -   use ICS    -            -              
                306 Ma:                  -                    -                -              -                 -         use ICS         - Chamovnicheskian  -             -   use ICS    -            -              
                305 Ma:                  -                    - Virgilian      -              -                 -         use ICS         - Dorogomilovksian  -             -   use ICS    -            -              
      303.9 +/- 0.9 Ma:                  - Gzhelian           -                -              -                 -         use ICS         - Klazminskian      -             -   use ICS    -            -              
              300.5 Ma:                  -                    -                -              -                 -         use ICS         - Noginskian        -             -   use ICS    -            -              
        299 +/- 0.8 Ma: Permian          - Asselian           - Wolfcampian    -   use ICS    - Xixianian       -         use ICS         -      use ICS      -             -   use ICS    -            -              
      294.6 +/- 0.8 Ma:                  - Sakmarian          -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                289 Ma:                  -                    -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Telfordian   
      284.4 +/- 0.7 Ma:                  - Artinskian         -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                280 Ma:                  -                    - Leonardian     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                278 Ma:                  -                    -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Mangapirian  
      275.6 +/- 0.7 Ma:                  - Kungurian          -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      270.6 +/- 0.7 Ma:                  - Roadian            - Guadalupian    - Kazanian     - Maokovian       -         use ICS         -      use ICS      -             -   use ICS    -            - Braxtonian   
        268 +/- 0.7 Ma:                  - Wordian            -                -              -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      265.8 +/- 0.7 Ma:                  - Capitanian         -                -              -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      260.4 +/- 0.7 Ma:                  - Wuchiapingian      - Ochoan         - Tatarian     - Wujiapingian    -         use ICS         -      use ICS      -             -   use ICS    -            - Waiitian     
      253.8 +/- 0.7 Ma:                  - Changhsingian      -                -              - Changhsingian   -         use ICS         -      use ICS      -             -   use ICS    -            - Makabewan    
        251 +/- 0.4 Ma: Triassic         - Induan             - Griesbachian   -   use ICS    - Feixianguanian  -         use ICS         -      use ICS      -             -   use ICS    -            -    use ICS   
              250.4 Ma:                  -                    - Dienerian      -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -    use ICS   
      249.7 +/- 0.7 Ma:                  - Olenekian          - Smithian       -   use ICS    - Yongningzhenian -         use ICS         -      use ICS      -             -   use ICS    -            -    use ICS   
                248 Ma:                  -                    -                -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Malakovian   
              247.4 Ma:                  -                    - Spathian       -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
        245 +/- 1.5 Ma:                  - Anisian            -    use ICS     -   use ICS    - Guanlingian     -         use ICS         -      use ICS      -             -   use ICS    -            -              
                243 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Etalian      
          237 +/- 2 Ma:                  - Ladinian           -    use ICS     -   use ICS    - Falangian       -         use ICS         -      use ICS      -             -   use ICS    -            -              
                232 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Kaihikuan    
          228 +/- 2 Ma:                  - Carnian            -    use ICS     -   use ICS    - Bananian        -         use ICS         -      use ICS      -             -   use ICS    -            -              
                225 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Oretian      
                219 Ma:                  -                    -    use ICS     -   use ICS    - Huobachengian   -         use ICS         -      use ICS      -             -   use ICS    -            -              
                218 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Otamitan     
        216.5 +/- 2 Ma:                  - Norian             -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                209 Ma:                  -                    -    use ICS     -   use ICS    - Erqiaoan        -         use ICS         -      use ICS      -             -   use ICS    -            -              
                206 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Warepan      
      203.6 +/- 1.5 Ma:                  - Rhaetian           -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                203 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Otapirian    
      199.6 +/- 0.6 Ma: Jurassic         - Hettangian         -    use ICS     -   use ICS    - Ziliujingian    -         use ICS         -      use ICS      -             -   use ICS    -            - Aratauran    
        196.5 +/- 1 Ma:                  - Sinemurian         -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
      189.6 +/- 1.5 Ma:                  - Pliensbachian      -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                188 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Uruoan       
        183 +/- 1.5 Ma:                  - Toarcian           -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
        175.6 +/- 2 Ma:                  - Aalenian           -    use ICS     -   use ICS    - Xintiangouan    -         use ICS         -      use ICS      -             -   use ICS    -            -              
        171.6 +/- 3 Ma:                  - Bajocian           -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                169 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Temaikan     
      167.7 +/- 3.5 Ma:                  - Bathonian          -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                167 Ma:                  -                    -    use ICS     -   use ICS    - Shaximioan      -         use ICS         -      use ICS      -             -   use ICS    -            -              
        164.7 +/- 4 Ma:                  - Callovian          -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
        161.2 +/- 4 Ma:                  - Oxfordian          -    use ICS     -   use ICS    - Suiningian      -         use ICS         -      use ICS      -             -   use ICS    -            -    use ICS   
                156 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Heterian     
        155.7 +/- 4 Ma:                  - Kimmeridgian       -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                152 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Ohauan       
        150.8 +/- 4 Ma:                  - Tithonian          -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            -              
                150 Ma:                  -                    -    use ICS     -   use ICS    -                 -         use ICS         -      use ICS      -             -   use ICS    -            - Puaroan      
                149 Ma:                  -                    -    use ICS     -   use ICS    - Penglaizhenian  -         use ICS         -      use ICS      -             -   use ICS    -            -              
        145.5 +/- 4 Ma: Cretaceous       - Berriasian         - Coahulian      - Neocomian    -     use ICS     -         use ICS         -      use ICS      - Kochian     -   use ICS    -            - Mokoiwian    
        140.2 +/- 3 Ma:                  - Valanginian        -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
        136.4 +/- 2 Ma:                  - Hauterivian        -                -              -     use ICS     -         use ICS         -      use ICS      - Aritan      -   use ICS    -            -              
        130 +/- 1.5 Ma:                  - Barremian          -                - Gallic       -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
                127 Ma:                  -                    - Comanchean     -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
          125 +/- 1 Ma:                  - Aptian             -                -              -     use ICS     -         use ICS         -      use ICS      - Miyakoan    -   use ICS    -            -              
                119 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Korangian    
          112 +/- 1 Ma:                  - Albian             -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
                110 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Urutawan     
                104 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Motuan       
       99.6 +/- 0.9 Ma:                  - Cenomanian         - Gulfian        -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Ngaterian    
               96.6 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      - Gyliakian   -   use ICS    -            -              
                 95 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Arowhanan    
       93.5 +/- 0.8 Ma:                  - Turonian           -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
                 93 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Mangaotanean 
         89.3 +/- 1 Ma:                  - Coniacian          -                - Senonian     -     use ICS     -         use ICS         -      use ICS      - Urakawan    -   use ICS    -            -              
                 87 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Teratan      
       85.8 +/- 0.7 Ma:                  - Santonian          -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
       83.5 +/- 0.7 Ma:                  - Campanian          -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Piripauan    
               77.1 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      - Hetonian    -   use ICS    -            -              
       70.6 +/- 0.6 Ma:                  - Maastrichtian      -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Haumurian    
       65.5 +/- 0.3 Ma: Paleogene        - Danian             - Puercan        -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            - Teurian      
               62.5 Ma:                  -                    - Torrejonian    -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
       61.7 +/- 0.2 Ma:                  - Selandian          -                -   use ICS    -     use ICS     - Wangerripian            -      use ICS      -   use ICS   -   use ICS    -            -              
               61.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Ynezian    -              
               60.5 Ma:                  -                    - Tiffanian      -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
       58.7 +/- 0.2 Ma:                  - Thanetian          -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
               56.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Waipawan     
                 56 Ma:                  -                    - Clarkforkian   -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
       55.8 +/- 0.2 Ma:                  - Ypresian           -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Bulitian   -              
               55.5 Ma:                  -                    - Wasatchian     -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 53 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Penutian   -              
                 52 Ma:                  -                    -                -   use ICS    -     use ICS     - Johannian               -      use ICS      -   use ICS   -   use ICS    -            - Mangaorapan  
                 51 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Ulatisian  -              
               50.5 Ma:                  -                    - Bridgerian     -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 50 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Heretaungan  
       48.6 +/- 0.2 Ma:                  - Lutetian           -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 48 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Narizian   -              
                 47 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Porangan     
               45.4 Ma:                  -                    - Uintan         -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 44 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Bortonian    
       40.4 +/- 0.2 Ma:                  - Bartonian          -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 40 Ma:                  -                    - Duchesnean     -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Kiaitan      
       37.2 +/- 0.1 Ma:                  - Priabonian         -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Runangan     
                 37 Ma:                  -                    - Chadronian     -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 36 Ma:                  -                    -                -   use ICS    -     use ICS     - Aldingian               -      use ICS      -   use ICS   -   use ICS    -            -              
                 35 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Refugian   -              
       33.9 +/- 0.1 Ma:                  - Rupelian           -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Whaingaroan  
               33.5 Ma:                  -                    - Orellan        -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Zemorrian  -              
                 33 Ma:                  -                    -                -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
                 32 Ma:                  -                    - Whitneyan      -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
               30.5 Ma:                  -                    - Arikareean     -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
                 30 Ma:                  -                    -                -   use ICS    -     use ICS     - Janjukian               -      use ICS      -   use ICS   -   use ICS    -            -              
       28.4 +/- 0.1 Ma:                  - Chattian           -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 28 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Duntroonian  
               27.5 Ma:                  -                    -                -   use ICS    -     use ICS     - Longfordian             -      use ICS      -   use ICS   -   use ICS    -            -              
                 27 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Waitakian    
     23.03 +/- 0.05 Ma: Neogene          - Aquitanian         -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Otaian       
                 22 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    - Saucesian  -              
                 21 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Hutchinsonian
     20.43 +/- 0.05 Ma:                  - Burdigalian        -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
                 20 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            - Awamoan      
                 19 Ma:                  -                    - Hemingfordian  -   use ICS    -     use ICS     -                         -      use ICS      -   use ICS   -   use ICS    -            -              
               18.2 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      - Haranoyan   -   use ICS    -            -              
               17.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Altonian     
               16.5 Ma:                  -                    -                -   use ICS    -     use ICS     - Batesfordian            -      use ICS      -             -   use ICS    - Relizian   - Cliffdenian  
     15.97 +/- 0.05 Ma:                  - Langhian           -                -   use ICS    -     use ICS     -                         -      use ICS      - Tozawan     -   use ICS    -            -              
               15.5 Ma:                  -                    - Barstovian     -   use ICS    -     use ICS     - Balcombian              -      use ICS      -             -   use ICS    - Luisian    -              
                 15 Ma:                  -                    -                -   use ICS    -     use ICS     - Bairnsdalian            -      use ICS      -             -   use ICS    -            - Lillburnian  
     13.65 +/- 0.05 Ma:                  - Serravallian       -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
               13.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      - Kaburan     -   use ICS    - Mohnian    -              
               11.8 Ma:                  -                    - Clarendonian   -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
   11.608 +/- 0.005 Ma:                  - Tortonian          -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
               11.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Waiauan      
               11.1 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      - Fujian      -   use ICS    -            -              
               10.5 Ma:                  -                    -                -   use ICS    -     use ICS     - Mitchellian             -      use ICS      -             -   use ICS    -            -              
                 10 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Tongaporutuan
                9.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      - Yuian       -   use ICS    -            -              
                  9 Ma:                  -                    - Hemphillian    -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
                7.5 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    - Delmontian -              
    7.246 +/- 0.005 Ma:                  - Messinian          -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
                  6 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Kapitean     
    5.332 +/- 0.005 Ma:                  - Zanclean           -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
                  5 Ma:                  -                    -                -   use ICS    -     use ICS     - Cheltenhamian           -      use ICS      -             -   use ICS    -            -              
                4.8 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Opoitian     
               4.75 Ma:                  -                    - Blancan        -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
                4.3 Ma:                  -                    -                -   use ICS    -     use ICS     - Kalimnan                -      use ICS      -             -   use ICS    -            -              
      3.6 +/- 0.005 Ma:                  - Piacenzian         -                -   use ICS    -     use ICS     -                         -      use ICS      - Totomian    -   use ICS    -            - Waipipian    
                3.4 Ma:                  -                    -                -   use ICS    -     use ICS     - Yatalan                 -      use ICS      -             -   use ICS    -            -              
                  3 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      - Suchian     -   use ICS    -            -              
                2.9 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    - Repettian  -              
                2.6 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Mangapanian  
    2.588 +/- 0.005 Ma:                  - Gelasian           -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    -            -              
                2.2 Ma:                  -                    -                -   use ICS    -     use ICS     -                         -      use ICS      -             -   use ICS    - Venturian  -              
                  2 Ma:                  -                    -                -   use ICS    -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
               1.96 Ma:                  -                    -                -   use ICS    -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            - Nukumaruan   
                1.9 Ma:                  -                    -                -   use ICS    -     use ICS     -         use ICS         -      use ICS      - Kechienjian -   use ICS    - Wheelerian -              
    1.806 +/- 0.005 Ma:                  - Early Pleistocene  - Irvingtonian   - Calabrian    -     use ICS     - Werrikooian             -      use ICS      -             -   use ICS    -            -              
                1.5 Ma:                  -                    -                -              -     use ICS     -                         -      use ICS      - Yuzanjian   -   use ICS    -            -              
                1.1 Ma:                  -                    -                -              -     use ICS     -                         -      use ICS      -             -   use ICS    -            - Okehuan      
                  1 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
    0.781 +/- 0.005 Ma:                  - Middle Pleistocene -                - Sicilian     -     use ICS     -         use ICS         -      use ICS      -             -   use ICS    -            -              
               0.75 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
               0.48 Ma:                  -                    -                -              -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            - Putikian     
                0.3 Ma:                  -                    - Rancholabrean  -              -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
               0.26 Ma:                  -                    -                - Tyrrhenian   -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
    0.126 +/- 0.005 Ma:                  - Late Pleistocene   -                -              -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    -            -              
0.01143 +/- 0.00013 Ma:                  - Holocene           -    use ICS     -   use ICS    -     use ICS     -         use ICS         -      use ICS      -   use ICS   -   use ICS    - Hallian    - Hawera       
 

This page was automatically generated from the GeoWhen database (version 1.1.0).  Please read the introduction regarding the accuracy and reliability of this information.  Comments, corrections, and additions can be sent to geowhen@robertrohde.com.  References to published academic literature are preferred.

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Geologic Timeline
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Geologic Timeline
(With Stages)

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2003-2005 GeoWhen Database
Prepared By Robert A. Rohde


This page was last updated on Tuesday, January 18, 2005.