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
- M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 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.
This timescale is used in the definition of 126848 collections
| International Chronostratigraphic Timescale | Silurian of the Baltic | Silurian of England | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Silurian | Pridoli | Ohesaare | Red Downtonian/Temeside Shales/Downton Castle | Whitcliffe/Leintwardine | 419.2 | |||||
| Bringewood/Elton | 421.3 | |||||||||
| Kaugetuma | 421.7 * | |||||||||
| Ludlow | Ludfordian | Kuressaare | Coalbrookdale | Wenlock (England)/Tickwood | 423 | |||||
| Paadla | 423.4 * | |||||||||
| Gorstian | 425.6 | |||||||||
| Buildwas | 426.4 * | |||||||||
| Wenlock | Homerian | Rootsikula | 427.4 | |||||||
| Wych | Woolhope | 428.4 * | ||||||||
| Jaagarahu | 429.2 * | |||||||||
| Sheinwoodian | 430.5 | |||||||||
| Jaani | 431.8 * | |||||||||
| Llandovery | Telychian | 433.4 | ||||||||
| Adavere | 434 * | |||||||||
| 436.3 * | ||||||||||
| Aeronian | 438.5 | |||||||||
| Cowleigh Park | 439.3 * | |||||||||
| Raikkula | 439.4 * | |||||||||
| Rhuddanian | 440.8 | |||||||||
| Juuru | 441.4 * | |||||||||
| 443.8 | ||||||||||