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 126679 collections
International Chronostratigraphic Timescale | Carbo-Permian of the Russian Platform | Permian of the Russian Platform | Permian of the Salt Range | 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 | |||||||||
Kathwai | 251.5 * | |||||||||
Permian | Lopingian | Changhsingian | Melekhovian | 251.902 | ||||||
252.4 * | ||||||||||
Chhidru | 252.9 * | |||||||||
Wuchiapingian | Longtanian † | 254.14 | ||||||||
Kalabagh | 255 * | |||||||||
Wargal | 256 * | |||||||||
Tatarian | Vyatkian | 256.8 * | ||||||||
Guadalupian | Capitanian | Severodvinian | 259.51 | |||||||
Wordian | Urzhumian | 264.28 | ||||||||
Noginskian | 264.9 * | |||||||||
265.3 * | ||||||||||
Amb | 266.1 * | |||||||||
Roadian | Kazanian | Povolzhian | 266.9 | |||||||
Sokian | 270.7 * | |||||||||
Cisuralian | Kungurian | Kungurian | Irenian/Ufimian | 273.01 | ||||||
Filipovian | 276.5 * | |||||||||
Pavlovoposadian | 276.8 * | |||||||||
Saraninian | 280.1 * | |||||||||
Artinskian | Artinskian | Sarginian | 283.5 | |||||||
Irginian | 285.9 * | |||||||||
Rusavkinian | 287.6 * | |||||||||
Burtsevian | 287.8 * | |||||||||
Sakmarian | Sakmarian | Sterlitamakian | 290.1 | |||||||
Tastubian | 291.7 * | |||||||||
Asselian | Asselian | Shikhanian | 293.52 | |||||||
Uskalykian | 294.8 | |||||||||
Surenian | 297.5 | |||||||||
Carboniferous | Pennsylvanian | Gzhelian | 298.9 | |||||||
Kasimovian | Dorogomilovian | 303.7 | ||||||||
Khamovnikian | 304.8 | |||||||||
Krevyakinian | 305.8 * | |||||||||
Moscovian | Myachkovian | 307 | ||||||||
Podolskian | 308.9 * | |||||||||
Kashirian | 311.4 * | |||||||||
Vereian | 313.8 | |||||||||
Melekessian | 314.8 | |||||||||
Bashkirian | 315.2 | |||||||||
Cheremshanian | 316.9 * | |||||||||
Prikamian | 318.6 * | |||||||||
Severokeltmian | 319.9 * | |||||||||
Krasnopolyanian | 321.2 * | |||||||||
Voznesenian | 321.9 * | |||||||||
Mississippian | Serpukhovian | Zapaltjubian | 323.2 | |||||||
Protvian | 324.4 * | |||||||||
Steshevian | 326.8 * | |||||||||
Tarusian | 329 * | |||||||||
Visean | Venevian | 330.9 | ||||||||
Mikhailovian | 331.9 * | |||||||||
Aleksinian | 333.7 * | |||||||||
Tulian | 335.8 * | |||||||||
Bobrikian | 339.9 * | |||||||||
Radaevkian | 343.4 * | |||||||||
Tournaisian | Kosvian | 346.7 | ||||||||
Kizelian | 350.7 * | |||||||||
Cherepetian | 351.9 * | |||||||||
Karakubian | 354.4 * | |||||||||
Upinian | 356.3 * | |||||||||
Malevkian | 357.6 * | |||||||||
Gumerovian | 358 * | |||||||||
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 | 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 |