Ordovician of Australia
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
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
There are 9 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 377 collections
| International Chronostratigraphic Timescale | Ordovician of Australia | Ordovician of China | |||||
|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Bolindian | Hirnantian | Xiaoxita †/Shikou | Wufeng † | 443.8 |
| Katian | Chientangkiangian | 445.2 | |||||
| Eastonian | 449 * | ||||||
| Neichianshanian/Hanjiang | 449.5 | ||||||
| Gisbornian | 452 * | ||||||
| Sandbian | 453 | ||||||
| Middle Ordovician | Darriwilian | Darriwilian | Darriwilian | Guniu †/Hulo | 458.4 | ||
| Hunjiang † | Dawan †/Daobaowan/Ningkuo | 466.3 * | |||||
| Dapingian | Yapeenian | Dapingian | 467.3 | ||||
| Castlemainian | 468.5 * | ||||||
| Early Ordovician | Floian | Chewtonian | Yiyangian | 470 | |||
| Bendigonian | 471.8 * | ||||||
| Lancefieldian | 473.5 * | ||||||
| Tremadocian | Xinchangian | 477.7 | |||||
| Lianghekou † | 477.9 * | ||||||
| Warendian | 482.8 * | ||||||
| 485.4 | |||||||