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
- 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
- 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 126148 collections
International Chronostratigraphic Timescale | Cambrian of Kazakhstan | Cambrian of Britain | Cambrian of West Avalonia | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cambrian | Furongian | Stage 10 | Batyrbaian | Merioneth | Dolgellian/Trempealeauan | 485.4 | |||||||
Festiniogian | 489.2 * | ||||||||||||
Jiangshanian | 489.5 | ||||||||||||
Aksaian | 490.7 * | ||||||||||||
Sakian | 492.2 * | ||||||||||||
Maentwrogian | 493.1 * | ||||||||||||
Paibian | 494 | ||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | St Davids | 497 | |||||||||
Arcadian | 498.4 | ||||||||||||
499.5 | |||||||||||||
Drumian | Zhanaarykian | 500.5 | |||||||||||
Tuesaian | 503 | ||||||||||||
Wuliuan | 504.5 | ||||||||||||
505.3 | |||||||||||||
Series 2 | Stage 4 | Caerfai | Branchian | 509 | |||||||||
Toyonian | 510 * | ||||||||||||
Botomian | 512.5 * | ||||||||||||
Stage 3 | 514 | ||||||||||||
Atdabanian | 515.6 * | ||||||||||||
Placentian | 517.1 | ||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | ||||||||||
525.5 | |||||||||||||
Fortunian | 529 | ||||||||||||
538.8 |