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. 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
- 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
- J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view
- D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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 126973 collections
International Chronostratigraphic Timescale | Ordovician of North America | Ten Million Year Bins | Cambrian of Siberia | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
470 | |||||||||||||
482 | |||||||||||||
Cambrian | Furongian | Stage 10 | Ibexian | Skullrockian | Cambrian 5 | Batyrbaian | Tavgian † | Ketyan †/Yurakian | 485.4 * | ||||
487.5 | |||||||||||||
Jiangshanian | 489.5 | ||||||||||||
Aksaian | 490.7 * | ||||||||||||
Sakian | 492.2 * | ||||||||||||
Paibian | 494 | ||||||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | ||||||||||||
Miaolingian | Guzhangian | Cambrian 4 | Ayusokkanian | 497 | |||||||||
Mayan/Menevian | 499.5 | ||||||||||||
Drumian | 500.5 | ||||||||||||
Wuliuan | Cambrian 3 | Amgan/Solvan | 504.5 | ||||||||||
Series 2 | Stage 4 | 509 | |||||||||||
Toyonian | Lenian † | 510 * | |||||||||||
Botomian | 512.5 * | ||||||||||||
Stage 3 | Cambrian 2 | 514 | |||||||||||
Atdabanian | 515.6 * | ||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | ||||||||||
Nemakit-Daldynian | 525.5 | ||||||||||||
Fortunian | Cambrian 1 | Manykaian † | 529 | ||||||||||
538.8 |