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
- D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
- F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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 126734 collections
International Chronostratigraphic Timescale | Ordovician of Australia | Devonian Subages | Permian of China | Permian of the Salt Range | Cambrian of Siberia | |||||
---|---|---|---|---|---|---|---|---|---|---|
Quaternary | Holocene | Meghalayan | 0 | |||||||
Northgrippian | 0.0042 | |||||||||
Greenlandian | 0.0082 | |||||||||
Pleistocene | Late Pleistocene | 0.0117 | ||||||||
Chibanian | 0.129 | |||||||||
Calabrian | 0.774 | |||||||||
Gelasian | 1.8 | |||||||||
Neogene | Pliocene | Piacenzian | 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 | |||||||||
Kathwai | 251.5 * | |||||||||
Permian | Lopingian | Changhsingian | Meishanian | 251.902 | ||||||
252.4 * | ||||||||||
Chhidru | 252.9 * | |||||||||
Baoqingian | 253.4 * | |||||||||
Wuchiapingian | Laoshanian | 254.14 | ||||||||
Kalabagh | 255 * | |||||||||
Wargal | 256 * | |||||||||
Laibinian | 257.7 * | |||||||||
Guadalupian | Capitanian | Lengwuan | 259.51 | |||||||
Wordian | Kuhfengian | 264.28 | ||||||||
265.3 * | ||||||||||
Amb | 266.1 * | |||||||||
Roadian | 266.9 | |||||||||
270.7 * | ||||||||||
Cisuralian | Kungurian | Luodianian | 273.01 | |||||||
Artinskian | 283.5 | |||||||||
Longlinian | 285.4 * | |||||||||
Sakmarian | 290.1 | |||||||||
Asselian | Zisongian | 293.52 | ||||||||
Carboniferous | Pennsylvanian | Gzhelian | 298.9 | |||||||
300.1 | ||||||||||
Kasimovian | 303.7 | |||||||||
Moscovian | 307 | |||||||||
Bashkirian | 315.2 | |||||||||
Mississippian | Serpukhovian | 323.2 | ||||||||
Visean | 330.9 | |||||||||
Tournaisian | 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 | Bolindian | 443.8 | ||||||
Katian | 445.2 | |||||||||
Eastonian | 449 * | |||||||||
Gisbornian | 452 * | |||||||||
Sandbian | 453 | |||||||||
Middle Ordovician | Darriwilian | Darriwilian | 458.4 | |||||||
Dapingian | Yapeenian | 467.3 | ||||||||
Castlemainian | 468.5 * | |||||||||
Early Ordovician | Floian | Chewtonian | 470 | |||||||
Bendigonian | 471.8 * | |||||||||
Lancefieldian | 473.5 * | |||||||||
Tremadocian | 477.7 | |||||||||
Warendian | 482.8 * | |||||||||
Mansian † | 483.55 * | |||||||||
Cambrian | Furongian | Stage 10 | Batyrbaian | Tavgian † | Ketyan †/Yurakian | 485.4 | ||||
Jiangshanian | 489.5 | |||||||||
Aksaian | 490.7 * | |||||||||
Sakian | 492.2 * | |||||||||
Paibian | 494 | |||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | |||||||||
Miaolingian | Guzhangian | Ayusokkanian | 497 | |||||||
Mayan/Menevian | 499.5 | |||||||||
Drumian | 500.5 | |||||||||
Wuliuan | Amgan/Solvan | 504.5 | ||||||||
Series 2 | Stage 4 | 509 | ||||||||
Toyonian | Lenian † | 510 * | ||||||||
Botomian | 512.5 * | |||||||||
Stage 3 | 514 | |||||||||
Atdabanian | 515.6 * | |||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | |||||||
Nemakit-Daldynian | 525.5 | |||||||||
Fortunian | Manykaian † | 529 | ||||||||
538.8 |