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
- A. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 view
- M. O. Woodburne. 1987. A prospectus of the North American Mammal Ages. In: Woodburne, M. O. (ed.), Cenozoic Mammals of North America. University of California Press, Berkelery, CA 285-290 view
- J. Alroy. 2000. New methods for quantifying macroevolutionary patterns and processes. Paleobiology 26(4):707-733 view
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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 126197 collections
International Chronostratigraphic Timescale | Cambrian of Australia | Ten Million Year Bins | Obsolete Names for ICS Units | Cambrian of West Avalonia | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cambrian | Furongian | Stage 10 | Datsonian | Cambrian 5 | 485.4 | ||||||||||||
Payntonian | 486.8 * | ||||||||||||||||
Jiangshanian | Iverian | 489.5 | |||||||||||||||
Paibian | Idamean | 494 | |||||||||||||||
Miaolingian | Guzhangian | Mindyallan | Cambrian 4 | Series 3 † | 497 | ||||||||||||
Arcadian | 498.4 | ||||||||||||||||
Boomerangian | 499 | ||||||||||||||||
Drumian | Undillan | 500.5 | |||||||||||||||
Floran | 503 | ||||||||||||||||
Wuliuan | Templetonian | Cambrian 3 | Stage 5 † | 504.5 | |||||||||||||
Ordian | 507.8 * | ||||||||||||||||
Series 2 | Stage 4 | Branchian | 509 | ||||||||||||||
510.8 * | |||||||||||||||||
Stage 3 | Cambrian 2 | 514 | |||||||||||||||
Placentian | 517.1 | ||||||||||||||||
Terreneuvian | Stage 2 | 521 | |||||||||||||||
Fortunian | Cambrian 1 | 529 | |||||||||||||||
538.8 |