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
- M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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
- 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
- A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 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 | Cambrian of Siberia | Cambrian of North America | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cambrian | Furongian | Stage 10 | Batyrbaian | Tavgian † | Ketyan †/Yurakian | Franconian †/Dresbachian/Millardan | 485.4 | ||||||
Sunwaptan | 487.5 | ||||||||||||
Jiangshanian | 489.5 | ||||||||||||
Aksaian | 490.7 * | ||||||||||||
Sakian | 492.2 * | ||||||||||||
Steptoean | 493 * | ||||||||||||
Paibian | 494 | ||||||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | ||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | Marjumian | Albertian † | 497 | ||||||||
Mayan/Menevian | 499.5 | ||||||||||||
Drumian | 500.5 | ||||||||||||
Wuliuan | Amgan/Solvan | Topazan | 504.5 | ||||||||||
Delamaran | 506.5 | ||||||||||||
Series 2 | Stage 4 | Waucoban † | 509 | ||||||||||
Toyonian | Lenian † | 510 * | |||||||||||
Dyeran | 511 * | ||||||||||||
Botomian | 512.5 * | ||||||||||||
Stage 3 | 514 | ||||||||||||
Montezuman | 514.8 * | ||||||||||||
Atdabanian | 515.6 * | ||||||||||||
Begadean | 519.9 * | ||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | ||||||||||
Nemakit-Daldynian | 525.5 | ||||||||||||
Fortunian | Manykaian † | 529 | |||||||||||
538.8 |