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 126764 collections
| International Chronostratigraphic Timescale | Obsolete Carboniferous Ages of China | Permian of the Pamirs | |||
|---|---|---|---|---|---|
| Permian | Lopingian | Changhsingian | Dorashamian | 251.902 | |
| Wuchiapingian | Dzhulfian | 254.14 | |||
| Guadalupian | Capitanian | Midian | 259.51 | ||
| Wordian | 264.28 | ||||
| Murgabian | 266.2 * | ||||
| Roadian | 266.9 | ||||
| Cisuralian | Kungurian | Kubergandian | 273.01 | ||
| Bolorian | 279.8 | ||||
| Artinskian | 283.5 | ||||
| Yakhtashian | 286 | ||||
| Sakmarian | Sakmarian | 290.1 | |||
| Asselian | Asselian | 293.52 | |||
| Carboniferous | Pennsylvanian | Gzhelian | Mapingian † | 298.9 | |
| Kasimovian | 303.7 | ||||
| 305.9 | |||||