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
- Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 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 126848 collections
| International Chronostratigraphic Timescale | Permian of Western Europe | Neogene Mammal Ages of China | Cambrian of Kazakhstan | Carboniferous of North America | |||
|---|---|---|---|---|---|---|---|
| Quaternary | Pleistocene | Late Pleistocene | Nihewanian | 0.0117 | |||
| Chibanian | 0.129 | ||||||
| Calabrian | 0.774 | ||||||
| Gelasian | 1.8 | ||||||
| Neogene | Pliocene | Piacenzian | Yushean | 2.58 | |||
| Zanclean | 3.6 | ||||||
| Baodean | 4.9 | ||||||
| Miocene | Messinian | 5.333 | |||||
| Tortonian | 7.246 | ||||||
| Tunggurian | 11.1 | ||||||
| Serravallian | 11.63 | ||||||
| Langhian | Shanwangian | 13.82 | |||||
| Burdigalian | 15.98 | ||||||
| Xiejiaan | 16.9 | ||||||
| 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 | Zechstein | 254.14 | |||||
| Guadalupian | Capitanian | Rotliegendes | 259.51 | ||||
| Wordian | 264.28 | ||||||
| Roadian | 266.9 | ||||||
| Cisuralian | Kungurian | 273.01 | |||||
| Artinskian | Autunian | 283.5 | |||||
| Sakmarian | 290.1 | ||||||
| Asselian | Bursumian † | 293.52 | |||||
| Carboniferous | Pennsylvanian | Gzhelian | Virgilian | 298.9 | |||
| Kasimovian | Missourian | 303.7 | |||||
| Desmoinesian | 305.9 * | ||||||
| Moscovian | 307 | ||||||
| Atokan | 312.7 * | ||||||
| Bashkirian | 315.2 | ||||||
| Morrowan | 318.4 * | ||||||
| Mississippian | Serpukhovian | Chesterian | 323.2 | ||||
| Visean | 330.9 | ||||||
| Meramecian | 335.8 * | ||||||
| Osagean | 343.1 * | ||||||
| Tournaisian | 346.7 | ||||||
| Kinderhookian | 351.9 * | ||||||
| Devonian | Late Devonian | Famennian | 358.9 | ||||
| Frasnian | 372.2 | ||||||
| Middle Devonian | Givetian | 382.7 | |||||
| Eifelian | 387.7 | ||||||
| Early Devonian | Emsian | 393.3 | |||||
| Pragian | 407.6 | ||||||
| Lochkovian | 410.8 | ||||||
| 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 | Ungurian | 477.7 | |||||
| Cambrian | Furongian | Stage 10 | Batyrbaian | 485.4 | |||
| Jiangshanian | 489.5 | ||||||
| Aksaian | 490.7 * | ||||||
| Sakian | 492.2 * | ||||||
| Paibian | 494 | ||||||
| Miaolingian | Guzhangian | Ayusokkanian | 497 | ||||
| 499.5 | |||||||
| Drumian | Zhanaarykian | 500.5 | |||||
| Tuesaian | 503 | ||||||
| Wuliuan | 504.5 | ||||||
| 505.3 | |||||||
| Series 2 | Stage 4 | 509 | |||||
| Toyonian | 510 * | ||||||
| Botomian | 512.5 * | ||||||
| Stage 3 | 514 | ||||||
| Atdabanian | 515.6 * | ||||||
| Terreneuvian | Stage 2 | Tommotian | 521 | ||||
| 525.5 | |||||||