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
- J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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 | Carboniferous of North America | |||||
---|---|---|---|---|---|---|
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 * | |||||
358.9 |