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
- 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. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) view
- F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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
- 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 126778 collections
International Chronostratigraphic Timescale | Cambrian of Britain | Ordovician of the Baltic | Cambrian Epochs | Cambrian of Siberia | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
462.9 | |||||||||||||||
482.2 | |||||||||||||||
Cambrian | Furongian | Stage 10 | Merioneth | Dolgellian/Trempealeauan | Oeland | Pakerort | Late Cambrian | Batyrbaian | Tavgian † | Ketyan †/Yurakian | 485.4 * | ||||
486.3 * | |||||||||||||||
486.5 | |||||||||||||||
Festiniogian | 489.2 * | ||||||||||||||
Jiangshanian | 489.5 | ||||||||||||||
Aksaian | 490.7 * | ||||||||||||||
Sakian | 492.2 * | ||||||||||||||
Maentwrogian | 493.1 * | ||||||||||||||
Paibian | 494 | ||||||||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | ||||||||||||||
Miaolingian | Guzhangian | St Davids | Middle Cambrian | Ayusokkanian | 497 | ||||||||||
Mayan/Menevian | 499.5 | ||||||||||||||
Drumian | 500.5 | ||||||||||||||
Wuliuan | Amgan/Solvan | 504.5 | |||||||||||||
Series 2 | Stage 4 | Caerfai | Early Cambrian | 509 | |||||||||||
Toyonian | Lenian † | 510 * | |||||||||||||
Botomian | 512.5 * | ||||||||||||||
Stage 3 | 514 | ||||||||||||||
Atdabanian | 515.6 * | ||||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | ||||||||||||
Nemakit-Daldynian | 525.5 | ||||||||||||||
Fortunian | Manykaian † | 529 | |||||||||||||
538.8 |