International Chronostratigraphic Timescale
The interval definitions in this timescale are derived from the following sources:
- K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
There are 59 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 126606 collections
International Chronostratigraphic Timescale | Devonian Subages | Carboniferous of China | Obsolete Names for ICS Units | |||||
---|---|---|---|---|---|---|---|---|
Neogene | Pliocene | Piacenzian | Tertiary † | 2.58 | ||||
Zanclean | 3.6 | |||||||
Miocene | Messinian | 5.333 | ||||||
Tortonian | 7.246 | |||||||
Serravallian | 11.63 | |||||||
Langhian | 13.82 | |||||||
Burdigalian | 15.98 | |||||||
Aquitanian | 20.44 | |||||||
Paleogene | Oligocene | Chattian | 23.03 | |||||
Rupelian | 27.82 | |||||||
Eocene | Priabonian | 33.9 | ||||||
Bartonian | 37.71 | |||||||
Lutetian | 41.2 | |||||||
Ypresian | 47.8 | |||||||
Paleocene | Thanetian | 56 | ||||||
Selandian | 59.2 | |||||||
Danian | 61.6 | |||||||
Cretaceous | Late Cretaceous | Maastrichtian | 66 | |||||
Campanian | 72.1 | |||||||
Santonian | 83.6 | |||||||
Coniacian | 86.3 | |||||||
Turonian | 89.8 | |||||||
Cenomanian | 93.9 | |||||||
Early Cretaceous | Albian | 100.5 | ||||||
Aptian | 113 | |||||||
Barremian | 121.4 | |||||||
Hauterivian | 125.77 | |||||||
Valanginian | 132.6 | |||||||
Berriasian | 139.8 | |||||||
Jurassic | Late Jurassic | Tithonian | 145 | |||||
Kimmeridgian | 149.2 | |||||||
Oxfordian | 154.8 | |||||||
Middle Jurassic | Callovian | 161.5 | ||||||
Bathonian | 165.3 | |||||||
Bajocian | 168.2 | |||||||
Aalenian | 170.9 | |||||||
Early Jurassic | Toarcian | 174.7 | ||||||
Pliensbachian | 184.2 | |||||||
Sinemurian | 192.9 | |||||||
Hettangian | 199.5 | |||||||
Triassic | Late Triassic | Rhaetian | 201.4 | |||||
Norian | 208.5 | |||||||
Carnian | 227 | |||||||
Middle Triassic | Ladinian | 237 | ||||||
Anisian | 242 | |||||||
Early Triassic | Olenekian | 247.2 | ||||||
Induan | 251.2 | |||||||
Permian | Lopingian | Changhsingian | 251.902 | |||||
Wuchiapingian | Longtanian † | 254.14 | ||||||
Guadalupian | Capitanian | 259.51 | ||||||
Wordian | 264.28 | |||||||
Roadian | 266.9 | |||||||
Cisuralian | Kungurian | 273.01 | ||||||
Artinskian | 283.5 | |||||||
Sakmarian | 290.1 | |||||||
Asselian | 293.52 | |||||||
Carboniferous | Pennsylvanian | Gzhelian | 298.9 | |||||
Xiaodushanian | 300 * | |||||||
Kasimovian | 303.7 | |||||||
Dalaun | 305.8 * | |||||||
Moscovian | 307 | |||||||
Bashkirian | 315.2 | |||||||
Huashibanian | 318.5 * | |||||||
Lousuan | 321.2 * | |||||||
Mississippian | Serpukhovian | Dewunian | 323.2 | |||||
Shangsian | 330.8 * | |||||||
Visean | 330.9 | |||||||
Jiusian | 335 * | |||||||
Tournaisian | Tangbagouan | 346.7 | ||||||
Devonian | Late Devonian | Famennian | Late Famennian | 358.9 | ||||
Middle Famennian | 365.3 * | |||||||
Early Famennian | 368.5 * | |||||||
Frasnian | Late Frasnian | 372.2 | ||||||
Middle Frasnian | 375.4 * | |||||||
Early Frasnian | 379.3 * | |||||||
Middle Devonian | Givetian | Late Givetian | 382.7 | |||||
Middle Givetian | 383.7 * | |||||||
Early Givetian | 385.9 * | |||||||
Eifelian | Late Eifelian | 387.7 | ||||||
Early Eifelian | 390.3 * | |||||||
Early Devonian | Emsian | Late Emsian | 393.3 | |||||
Early Emsian | 398.3 * | |||||||
Pragian | Pragian | 407.6 | ||||||
Lochkovian | Late Lochkovian | 410.8 | ||||||
Middle Lochkovian | 412.8 * | |||||||
Early Lochkovian | 415.6 * | |||||||
Silurian | Pridoli | 419.2 | ||||||
Ludlow | Ludfordian | 423 | ||||||
Gorstian | 425.6 | |||||||
Wenlock | Homerian | 427.4 | ||||||
Sheinwoodian | 430.5 | |||||||
Llandovery | Telychian | 433.4 | ||||||
Aeronian | 438.5 | |||||||
Rhuddanian | 440.8 | |||||||
Ordovician | Late Ordovician | Hirnantian | 443.8 | |||||
Katian | 445.2 | |||||||
Sandbian | 453 | |||||||
Middle Ordovician | Darriwilian | 458.4 | ||||||
Dapingian | 467.3 | |||||||
Early Ordovician | Floian | 470 | ||||||
Tremadocian | 477.7 | |||||||
Cambrian | Furongian | Stage 10 | 485.4 | |||||
Jiangshanian | 489.5 | |||||||
Paibian | 494 | |||||||
Miaolingian | Guzhangian | Series 3 † | 497 | |||||
Drumian | 500.5 | |||||||
Wuliuan | Stage 5 † | 504.5 | ||||||
509 |