Cambrian of Kazakhstan
The interval definitions in this timescale are derived from the following sources:
- 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. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
There are 15 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 30 collections
| International Chronostratigraphic Timescale | Cambrian of Kazakhstan | Cambrian of North America | Ordovician of Ibero-Bohemia | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Kosovian | 443.8 | ||||||
| Katian | Kralodvorian | Bohdalec † | 445.2 | |||||||
| Berounian | 449.7 * | |||||||||
| Sandbian | 453 | |||||||||
| Zahorany †/Vinice | Letna † | 456.2 * | ||||||||
| Liben † | 458 * | |||||||||
| Middle Ordovician | Darriwilian | 458.4 | ||||||||
| Dobrotivian | 458.5 * | |||||||||
| Oretanian | 459.7 * | |||||||||
| Sarka † | 461.7 * | |||||||||
| Dapingian | Klabava † | 467.3 | ||||||||
| Arenigian | 468 | |||||||||
| Early Ordovician | Floian | 470 | ||||||||
| Tremadocian | Ungurian | Tremadocian | 477.7 | |||||||
| Cambrian | Furongian | Stage 10 | Batyrbaian | Franconian †/Dresbachian/Millardan | 485.4 | |||||
| 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 | ||||||||||