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
- 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
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
- F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
- J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view
- M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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
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 126192 collections
International Chronostratigraphic Timescale | Ten Million Year Bins | Cambrian of China | Cambrian of Australia | Cambrian of Britain | Cambrian of North America | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cambrian | Furongian | Stage 10 | Cambrian 5 | Niuchehean | Taoyuanian † | Datsonian | Merioneth | Dolgellian/Trempealeauan | Franconian †/Dresbachian/Millardan | 485.4 | |||||||
Payntonian | 486.8 * | ||||||||||||||||
Sunwaptan | 487.5 | ||||||||||||||||
Festiniogian | 489.2 * | ||||||||||||||||
Jiangshanian | Jiangshanian | Iverian | 489.5 | ||||||||||||||
Steptoean | 493 * | ||||||||||||||||
Maentwrogian | 493.1 * | ||||||||||||||||
Paibian | Paibian | Idamean | 494 | ||||||||||||||
Waergangian †/Youshuanian | 494.9 * | ||||||||||||||||
Miaolingian | Guzhangian | Cambrian 4 | Guzhangian | Wangcunian † | Mindyallan | St Davids | Marjumian | Albertian † | 497 | ||||||||
Boomerangian | 499 | ||||||||||||||||
Drumian | Drumian | Undillan | 500.5 | ||||||||||||||
Floran | 503 | ||||||||||||||||
Wuliuan | Cambrian 3 | Wuliuan/Taijangian | Templetonian | Topazan | 504.5 | ||||||||||||
Delamaran | 506.5 | ||||||||||||||||
Ordian | 507.8 * | ||||||||||||||||
Series 2 | Stage 4 | Duyunian | Caerfai | Waucoban † | 509 | ||||||||||||
510.8 * | |||||||||||||||||
Dyeran | 511 * | ||||||||||||||||
Stage 3 | Cambrian 2 | Nangaoian | 514 | ||||||||||||||
Montezuman | 514.8 * | ||||||||||||||||
Begadean | 519.9 * | ||||||||||||||||
Terreneuvian | Stage 2 | Meishucunian | 521 | ||||||||||||||
Fortunian | Cambrian 1 | 529 | |||||||||||||||
Jinnigian | 530.7 | ||||||||||||||||
538.8 |