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
- 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 128360 collections
International Chronostratigraphic Timescale | Cambrian of North America | Obsolete Precambrian Ages | Cambrian of China | Precambrian of Russia | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Phanerozoic | Paleozoic | Cambrian | Furongian | Stage 10 | Franconian †/Dresbachian/Millardan | Niuchehean | Taoyuanian † | 485.4 | ||||
Sunwaptan | 487.5 | |||||||||||
Jiangshanian | Jiangshanian | 489.5 | ||||||||||
Steptoean | 493 * | |||||||||||
Paibian | Paibian | 494 | ||||||||||
Waergangian †/Youshuanian | 494.9 * | |||||||||||
Miaolingian | Guzhangian | Marjumian | Albertian † | Guzhangian | Wangcunian † | 497 | ||||||
Drumian | Drumian | 500.5 | ||||||||||
Wuliuan | Topazan | Wuliuan/Taijangian | 504.5 | |||||||||
Delamaran | 506.5 | |||||||||||
Series 2 | Stage 4 | Waucoban † | Duyunian | 509 | ||||||||
Dyeran | 511 * | |||||||||||
Stage 3 | Nangaoian | 514 | ||||||||||
Montezuman | 514.8 * | |||||||||||
Begadean | 519.9 * | |||||||||||
Terreneuvian | Stage 2 | Meishucunian | 521 | |||||||||
Fortunian | 529 | |||||||||||
Jinnigian | 530.7 | |||||||||||
Proterozoic | Neoproterozoic | Ediacaran | Vendian † | Poundian † | Vendian | 538.8 | ||||||
Wonokan † | 571.7 * | |||||||||||
Cryogenian | 635 | |||||||||||
Tonian | 720 | |||||||||||
Karatau | 800 | |||||||||||
Mesoproterozoic | Stenian | 1000 | ||||||||||
Yurmatian | 1100 | |||||||||||
Ectasian | 1200 | |||||||||||
Burzyan | 1375 | |||||||||||
1400 |