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
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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 126144 collections
International Chronostratigraphic Timescale | Cambrian of Kazakhstan | Cambrian of Australia | Cambrian of China | Obsolete Names for ICS Units | Cambrian of West Avalonia | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cambrian | Furongian | Stage 10 | Batyrbaian | Datsonian | Niuchehean | Taoyuanian † | 485.4 | |||||||
Payntonian | 486.8 * | |||||||||||||
Jiangshanian | Iverian | Jiangshanian | 489.5 | |||||||||||
Aksaian | 490.7 * | |||||||||||||
Sakian | 492.2 * | |||||||||||||
Paibian | Idamean | Paibian | 494 | |||||||||||
Waergangian †/Youshuanian | 494.9 * | |||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | Mindyallan | Guzhangian | Wangcunian † | Series 3 † | 497 | |||||||
Arcadian | 498.4 | |||||||||||||
Boomerangian | 499 | |||||||||||||
499.5 | ||||||||||||||
Drumian | Zhanaarykian | Undillan | Drumian | 500.5 | ||||||||||
Tuesaian | Floran | 503 | ||||||||||||
Wuliuan | Templetonian | Wuliuan/Taijangian | Stage 5 † | 504.5 | ||||||||||
505.3 | ||||||||||||||
Ordian | 507.8 * | |||||||||||||
Series 2 | Stage 4 | Duyunian | Branchian | 509 | ||||||||||
Toyonian | 510 * | |||||||||||||
510.8 * | ||||||||||||||
Botomian | 512.5 * | |||||||||||||
Stage 3 | Nangaoian | 514 | ||||||||||||
Atdabanian | 515.6 * | |||||||||||||
Placentian | 517.1 | |||||||||||||
Terreneuvian | Stage 2 | Tommotian | Meishucunian | 521 | ||||||||||
525.5 | ||||||||||||||
Fortunian | 529 | |||||||||||||
Jinnigian | 530.7 | |||||||||||||
538.8 |