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
- 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
- Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 view
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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 126149 collections
International Chronostratigraphic Timescale | Ordovician of the Baltic | Cambrian of Kazakhstan | Cambrian of North America | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
462.9 | ||||||||||||||
482.2 | ||||||||||||||
Cambrian | Furongian | Stage 10 | Oeland | Pakerort | Batyrbaian | Franconian †/Dresbachian/Millardan | 485.4 * | |||||||
486.3 * | ||||||||||||||
486.5 | ||||||||||||||
Sunwaptan | 487.5 | |||||||||||||
Jiangshanian | 489.5 | |||||||||||||
Aksaian | 490.7 * | |||||||||||||
Sakian | 492.2 * | |||||||||||||
Steptoean | 493 * | |||||||||||||
Paibian | 494 | |||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | Marjumian | Albertian † | 497 | |||||||||
499.5 | ||||||||||||||
Drumian | Zhanaarykian | 500.5 | ||||||||||||
Tuesaian | 503 | |||||||||||||
Wuliuan | Topazan | 504.5 | ||||||||||||
505.3 | ||||||||||||||
Delamaran | 506.5 | |||||||||||||
Series 2 | Stage 4 | Waucoban † | 509 | |||||||||||
Toyonian | 510 * | |||||||||||||
Dyeran | 511 * | |||||||||||||
Botomian | 512.5 * | |||||||||||||
Stage 3 | 514 | |||||||||||||
Montezuman | 514.8 * | |||||||||||||
Atdabanian | 515.6 * | |||||||||||||
Begadean | 519.9 * | |||||||||||||
Terreneuvian | Stage 2 | Tommotian | 521 | |||||||||||
525.5 | ||||||||||||||
Fortunian | 529 | |||||||||||||
538.8 |