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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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 126844 collections
International Chronostratigraphic Timescale | Carboniferous Subepochs | Silurian of the Baltic | Carboniferous of North America | |||
---|---|---|---|---|---|---|
Permian | Cisuralian | Asselian | Bursumian † | 293.52 | ||
Carboniferous | Pennsylvanian | Gzhelian | Late Pennsylvanian | Virgilian | 298.9 | |
Kasimovian | Missourian | 303.7 | ||||
Desmoinesian | 305.9 * | |||||
Moscovian | Middle Pennsylvanian | 307 | ||||
Atokan | 312.7 * | |||||
Bashkirian | Early Pennsylvanian | 315.2 | ||||
Morrowan | 318.4 * | |||||
Mississippian | Serpukhovian | Late Mississippian | Chesterian | 323.2 | ||
Visean | Middle Mississippian | 330.9 | ||||
Meramecian | 335.8 * | |||||
Osagean | 343.1 * | |||||
Tournaisian | Early Mississippian | 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 | 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 * | |||||
443.8 |