Ten Million Year Bins

The interval definitions in this timescale are derived from the following sources:

  • F. M. Gradstein, F. P. Agterberg, J. G. Ogg, J. Hardenbol, P. Van Veen, J. Thierry, and Z. Huang. 1995. A Triassic, Jurassic, and Cretaceous time scale. SEPM Special Publication 54 view
  • F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
  • J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
  • W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
  • J. A. Lillegraven and M. C. McKenna. 1986. Fossil mammals from the "Mesaverde" Formation (Late Cretaceous, Judithian) of the Bighorn and Wind River basins, Wyoming, with definitions of Late Cretaceous North American Land-Mammal "Ages". American Museum Novitates 2840:1-68 view
  • J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view

There are 56 timescales which overlap this one. show

Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 1 collections

Show more time

Show linear time

International Chronostratigraphic TimescaleTen Million Year BinsMesozoic SubagesCarboniferous of North AmericaPermian of the PamirsCarboniferous of Western EuropeDevonian of Eastern North AmericaCretaceous SubepochsCarboniferous SubepochsCretaceous North American Land-Mammal AgesCambrian of KazakhstanPaleogene Mammal Ages of Asia
QuaternaryHoloceneMeghalayanCenozoic 60
Northgrippian0.0042
Greenlandian0.0082
PleistoceneLate Pleistocene0.0117
Chibanian0.129
Calabrian0.774
Gelasian1.8
NeogenePliocenePiacenzian2.58
Zanclean3.6
MioceneMessinian5.333
Tortonian7.246
SerravallianCenozoic 511.63
Langhian13.82
Burdigalian15.98
Aquitanian20.44
PaleogeneOligoceneChattianCenozoic 4TabenbulakianHsandagolian23.03
RupelianKekeamuan27.82
EocenePriabonianCenozoic 3Houldjinian/Ergilian/Ulangochuian33.9
BartonianSharamurunian/Irdinmanhan/Arshantan37.71
LutetianCenozoic 241.2
YpresianBumbanian47.8
PaleoceneThanetianCenozoic 1Gashatan56
Selandian59.2
Danian61.6
CretaceousLate CretaceousMaastrichtianCretaceous 8Late Maastrichtian/Early MaastrichtianSenonianLancian/Edmontonian66
CampanianCretaceous 7Late Campanian/Middle Campanian/Early CampanianJudithian/Aquilan72.1
SantonianCretaceous 6Late Santonian/Middle Santonian/Early Santonian83.6
ConiacianLate Coniacian/Middle Coniacian/Early Coniacian86.3
TuronianLate Turonian/Middle Turonian/Early Turonian89.8
CenomanianCretaceous 5Late Cenomanian/Middle Cenomanian/Early Cenomanian93.9
Early CretaceousAlbianCretaceous 4Late AlbianGallic100.5
Middle Albian106.2 *
Early Albian109.9 *
AptianCretaceous 3Late Aptian113
Early Aptian119.5 *
BarremianCretaceous 2Late Barremian/Early Barremian121.4
HauterivianLate Hauterivian/Early HauterivianNeocomian125.77
ValanginianCretaceous 1Late Valanginian/Early Valanginian132.6
BerriasianLate Berriasian139.8
Middle Berriasian140.6 *
Early Berriasian142.7 *
JurassicLate JurassicTithonianJurassic 6Late TithonianMiddle Tithonian145
Early Tithonian146.3 *
KimmeridgianJurassic 5Late Kimmeridgian149.2
Early Kimmeridgian152.2 *
OxfordianLate OxfordianMiddle Oxfordian/Early Oxfordian154.8
157.9 *
Middle JurassicCallovianLate Callovian/Middle Callovian/Early Callovian161.5
BathonianJurassic 4Late Bathonian/Middle Bathonian/Early Bathonian165.3
BajocianLate Bajocian168.2
Early Bajocian168.6 *
AalenianJurassic 3Late Aalenian/Middle Aalenian/Early Aalenian170.9
Early JurassicToarcianLate Toarcian174.7
Middle Toarcian180.4 *
Early Toarcian182.9 *
PliensbachianJurassic 2Late Pliensbachian/Early Pliensbachian184.2
SinemurianJurassic 1Late Sinemurian/Early Sinemurian192.9
HettangianLate Hettangian/Middle Hettangian/Early Hettangian199.5
TriassicLate TriassicRhaetianTriassic 4201.4
NorianSevatian208.5
Alaunian213.2 *
Lacian216.7 *
CarnianTriassic 3Tuvalian227
Julian233.4 *
Middle TriassicLadinianTriassic 2Longobardian237
Fassanian239.7 *
AnisianIllyrian242
Pelsonian243.8 *
Bithynian244.7 *
Aegean245.5 *
Early TriassicOlenekianTriassic 1Spathian247.2
Smithian248.9 *
InduanDienerian251.2
Griesbachian251.4 *
PermianLopingianChanghsingianPermian 4Dorashamian251.902
WuchiapingianDzhulfian254.14
GuadalupianCapitanianMidian259.51
Wordian264.28
Murgabian266.2 *
RoadianPermian 3266.9
CisuralianKungurianPermian 2Kubergandian273.01
Bolorian279.8
Artinskian283.5
Yakhtashian286
SakmarianSakmarian290.1
AsselianPermian 1Bursumian †Asselian293.52
Kuzel297.7
CarboniferousPennsylvanianGzhelianCarboniferous 5VirgilianLate Pennsylvanian298.9
StephanianStephanian C300.3 *
Stephanian B300.9 *
Stephanian A301.4 *
KasimovianMissourian303.7
Cantabrian305 *
Desmoinesian305.9 *
MoscovianCarboniferous 4Middle Pennsylvanian307
WestphalianWestphalian D307.4 *
Westphalian C309.8
Atokan312.7 *
Westphalian B314.6
BashkirianEarly Pennsylvanian315.2
Westphalian A317 *
Morrowan318.4 *
NamurianYeadonian318.8 *
Marsdenian320.2 *
Kinderscoutian321.5 *
Alportian322 *
Chokierian323.1 *
MississippianSerpukhovianCarboniferous 3ChesterianLate Mississippian323.2
Arnsbergian324 *
Pendleian327.4 *
ViseanCarboniferous 2WarnantianBrigantian †Middle Mississippian330.9
Meramecian335.8 *
LivianAsbian †336.3 *
MoliniacianHolkerian †/Arundian/Chadian340.2 *
Osagean343.1 *
TournaisianCarboniferous 1IvorianEarly Mississippian346.7
Kinderhookian351.9 *
Hastarian353.7 *
DevonianLate DevonianFamennianDevonian 5Conewangan/Conneautan/Canadaway358.9
FrasnianDevonian 4West Fallsian/Sonyean372.2
Middle DevonianGivetianDevonian 3Geneseean/Taghanican/TioughnioganCazenovian382.7
EifelianSouthwoodian387.7
Early DevonianEmsianDevonian 2Sawkillian/Deer ParkianHelderbergian393.3
PragianDevonian 1407.6
Lochkovian410.8
SilurianPridoliSilurian 2419.2
LudlowLudfordian423
Gorstian425.6
WenlockHomerian427.4
Sheinwoodian430.5
LlandoveryTelychianSilurian 1433.4
Aeronian438.5
Rhuddanian440.8
OrdovicianLate OrdovicianHirnantianOrdovician 5443.8
Katian445.2
SandbianOrdovician 4453
Middle OrdovicianDarriwilianOrdovician 3458.4
DapingianOrdovician 2467.3
Early OrdovicianFloian470
TremadocianOrdovician 1Ungurian477.7
CambrianFurongianStage 10Cambrian 5Batyrbaian485.4
Jiangshanian489.5
Aksaian490.7 *
Sakian492.2 *
Paibian494
MiaolingianGuzhangianCambrian 4Ayusokkanian497
499.5
DrumianZhanaarykian500.5
Tuesaian503
WuliuanCambrian 3504.5
505.3
Series 2Stage 4509
Toyonian510 *
Botomian512.5 *
Stage 3Cambrian 2514
Atdabanian515.6 *
TerreneuvianStage 2Tommotian521
525.5
FortunianCambrian 1529
538.8