Cincinnatian epoch
451.1 - 443.8 Ma
The definition of this interval in the timescale Ordovician of North America is taken from the following source:
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
The bottom age has 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.
There are intervals in 7 timescales which overlap this one. show
This interval is used in the definition of 8 collections
A total of 5507 collections with 36540 occurrences lie within this time span
| International Chronostratigraphic Timescale | Ordovician of North America | Ordovician of Australia | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Cincinnatian | Gamachian | Bolindian | 443.8 | ||||
| Katian | 445.2 | |||||||||
| Richmondian | 446 * | |||||||||
| Eastonian | 449 * | |||||||||
| Maysvillian | Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian | 449.8 * | ||||||||
| Edenian | 450.4 * | |||||||||
| Mohawkian | Chatfieldian | 451.1 * | ||||||||
| Gisbornian | 452 * | |||||||||
| Sandbian | 453 | |||||||||
| Turinian | 453.7 * | |||||||||
| Whiterockian | Canadian † | Chazyan †/Marmor | 457 * | |||||||
| Middle Ordovician | Darriwilian | Darriwilian | 458.4 | |||||||
| Dapingian | Yapeenian | 467.3 | ||||||||
| Castlemainian | 468.5 * | |||||||||
| Rangerian | 469.1 * | |||||||||
| Early Ordovician | Floian | Ibexian | Blackhillsian | Jeffersonian † | Cassinian † | Chewtonian | 470 | |||
| Bendigonian | 471.8 * | |||||||||
| Lancefieldian | 473.5 * | |||||||||
| Tulean | 473.9 * | |||||||||
| Tremadocian | 477.7 | |||||||||
| Stairsian | 480.3 * | |||||||||
| Skullrockian/Demingian | 482 * | |||||||||
| Warendian | 482.8 * | |||||||||
| 485.4 | ||||||||||
| 487.5 | ||||||||||