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 127017 collections
International Chronostratigraphic Timescale | Cambrian of Siberia | Devonian of Czechoslovakia | Permian of the Pamirs | Carboniferous Subepochs | Permian of the Russian Platform | Cambrian of West Avalonia | Silurian of the Baltic | Devonian of Germany | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Permian | Lopingian | Changhsingian | Dorashamian | 251.902 | ||||||||||
Wuchiapingian | Dzhulfian | 254.14 | ||||||||||||
Tatarian | Vyatkian | 256.8 * | ||||||||||||
Guadalupian | Capitanian | Midian | Severodvinian | 259.51 | ||||||||||
Wordian | Urzhumian | 264.28 | ||||||||||||
Murgabian | 266.2 * | |||||||||||||
Roadian | Kazanian | Povolzhian | 266.9 | |||||||||||
Sokian | 270.7 * | |||||||||||||
Cisuralian | Kungurian | Kubergandian | Kungurian | Irenian/Ufimian | 273.01 | |||||||||
Filipovian | 276.5 * | |||||||||||||
Bolorian | 279.8 | |||||||||||||
Saraninian | 280.1 * | |||||||||||||
Artinskian | Artinskian | Sarginian | 283.5 | |||||||||||
Irginian | 285.9 * | |||||||||||||
Yakhtashian | 286 | |||||||||||||
Burtsevian | 287.8 * | |||||||||||||
Sakmarian | Sakmarian | Sakmarian | Sterlitamakian | 290.1 | ||||||||||
Tastubian | 291.7 * | |||||||||||||
Asselian | Asselian | Asselian | Shikhanian | 293.52 | ||||||||||
Uskalykian | 294.8 | |||||||||||||
Surenian | 297.5 | |||||||||||||
Carboniferous | Pennsylvanian | Gzhelian | Late Pennsylvanian | 298.9 | ||||||||||
Kasimovian | 303.7 | |||||||||||||
Moscovian | Middle Pennsylvanian | 307 | ||||||||||||
Bashkirian | Early Pennsylvanian | 315.2 | ||||||||||||
Mississippian | Serpukhovian | Late Mississippian | 323.2 | |||||||||||
Visean | Middle Mississippian | 330.9 | ||||||||||||
Tournaisian | Early Mississippian | 346.7 | ||||||||||||
Devonian | Late Devonian | Famennian | Wocklum/Dasberg/Hemberg/Nehden | 358.9 | ||||||||||
Frasnian | Adorf | 372.2 | ||||||||||||
Middle Devonian | Givetian | Srbsko | Givetian | 382.7 | ||||||||||
Eifelian | Chotec | Eifelian | 387.7 | |||||||||||
Early Devonian | Emsian | Daleje/Zlichovian | Emsian | 393.3 | ||||||||||
Pragian | Pragian | Siegen | 407.6 | |||||||||||
Lochkovian | Lochkovian | Gedinnine | 410.8 | |||||||||||
Silurian | Pridoli | Ohesaare | 419.2 | |||||||||||
Kaugetuma | 421.7 * | |||||||||||||
Ludlow | Ludfordian | Kuressaare | 423 | |||||||||||
Paadla | 423.4 * | |||||||||||||
Gorstian | 425.6 | |||||||||||||
Wenlock | Homerian | Rootsikula | 427.4 | |||||||||||
Jaagarahu | 429.2 * | |||||||||||||
Sheinwoodian | 430.5 | |||||||||||||
Jaani | 431.8 * | |||||||||||||
Llandovery | Telychian | 433.4 | ||||||||||||
Adavere | 434 * | |||||||||||||
Aeronian | 438.5 | |||||||||||||
Raikkula | 439.4 * | |||||||||||||
Rhuddanian | 440.8 | |||||||||||||
Juuru | 441.4 * | |||||||||||||
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 | |||||||||||||
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 | |||||||||||
Arcadian | 498.4 | |||||||||||||
Mayan/Menevian | 499.5 | |||||||||||||
Drumian | 500.5 | |||||||||||||
Wuliuan | Amgan/Solvan | 504.5 | ||||||||||||
Series 2 | Stage 4 | Branchian | 509 | |||||||||||
Toyonian | Lenian † | 510 * | ||||||||||||
Botomian | 512.5 * | |||||||||||||
Stage 3 | 514 | |||||||||||||
Atdabanian | 515.6 * | |||||||||||||
Placentian | 517.1 | |||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | |||||||||||
Nemakit-Daldynian | 525.5 | |||||||||||||
Fortunian | Manykaian † | 529 | ||||||||||||
538.8 |