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
- M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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 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 | Ordovician of North America | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Cincinnatian | Gamachian | 443.8 | |||||
| Katian | 445.2 | |||||||||
| Richmondian | 446 * | |||||||||
| Maysvillian | Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian | 449.8 * | ||||||||
| Edenian | 450.4 * | |||||||||
| Mohawkian | Chatfieldian | 451.1 * | ||||||||
| Sandbian | 453 | |||||||||
| Turinian | 453.7 * | |||||||||
| Whiterockian | Canadian † | Chazyan †/Marmor | 457 * | |||||||
| Middle Ordovician | Darriwilian | 458.4 | ||||||||
| Dapingian | 467.3 | |||||||||
| Rangerian | 469.1 * | |||||||||
| Early Ordovician | Floian | Ibexian | Blackhillsian | Jeffersonian † | Cassinian † | 470 | ||||
| Tulean | 473.9 * | |||||||||
| Tremadocian | Ungurian | 477.7 | ||||||||
| Stairsian | 480.3 * | |||||||||
| Skullrockian | Demingian † | 482 * | ||||||||
| Cambrian | Furongian | Stage 10 | Batyrbaian | 485.4 | ||||||
| 487.5 | ||||||||||
| Jiangshanian | 489.5 | |||||||||
| Aksaian | 490.7 * | |||||||||
| Sakian | 492.2 * | |||||||||
| Paibian | 494 | |||||||||
| Miaolingian | Guzhangian | Ayusokkanian | 497 | |||||||
| 499.5 | ||||||||||
| Drumian | Zhanaarykian | 500.5 | ||||||||
| Tuesaian | 503 | |||||||||
| Wuliuan | 504.5 | |||||||||
| 505.3 | ||||||||||
| Series 2 | Stage 4 | 509 | ||||||||
| Toyonian | 510 * | |||||||||
| Botomian | 512.5 * | |||||||||
| Stage 3 | 514 | |||||||||
| Atdabanian | 515.6 * | |||||||||
| Terreneuvian | Stage 2 | Tommotian | 521 | |||||||
| 525.5 | ||||||||||