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
- P. L. Gibbard, M. J. Head, and M. J. C. Walker. 2010. Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma. Journal of Quaternary Science 25(2):96-102 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
- J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
- M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 view
- D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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 | Ordovician of North America | Cambrian of Siberia | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
470 | ||||||||||||||
482 | ||||||||||||||
Cambrian | Furongian | Stage 10 | Batyrbaian | Ibexian | Skullrockian | Batyrbaian | Tavgian † | Ketyan †/Yurakian | 485.4 * | |||||
487.5 | ||||||||||||||
Jiangshanian | 489.5 | |||||||||||||
Aksaian | Aksaian | 490.7 * | ||||||||||||
Sakian | Sakian | 492.2 * | ||||||||||||
Paibian | 494 | |||||||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | |||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | Ayusokkanian | 497 | ||||||||||
Mayan/Menevian | 499.5 | |||||||||||||
Drumian | Zhanaarykian | 500.5 | ||||||||||||
Tuesaian | 503 | |||||||||||||
Wuliuan | Amgan/Solvan | 504.5 | ||||||||||||
505.3 | ||||||||||||||
Series 2 | Stage 4 | 509 | ||||||||||||
Toyonian | Toyonian | Lenian † | 510 * | |||||||||||
Botomian | Botomian | 512.5 * | ||||||||||||
Stage 3 | 514 | |||||||||||||
Atdabanian | Atdabanian | 515.6 * | ||||||||||||
Terreneuvian | Stage 2 | Tommotian | Tommotian | 521 | ||||||||||
Nemakit-Daldynian | 525.5 | |||||||||||||
Fortunian | Manykaian † | 529 | ||||||||||||
538.8 |