Castlemainian age - Yapeenian age
| International Chronostratigraphic Timescale | Ordovician of Australia | |||
|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Bolindian | 443.1 |
| Katian | 445.2 | |||
| Eastonian | 449 * | |||
| Gisbornian | 452.3 * | |||
| Sandbian | 452.8 | |||
| Middle Ordovician | Darriwilian | Darriwilian | 458.2 | |
| Dapingian | Yapeenian | 469.4 | ||
| Castlemainian | 470.3 | |||
| Early Ordovician | Floian | Chewtonian | 471.3 | |
| Bendigonian | 473.1 | |||
| Lancefieldian | 474.9 | |||
| Tremadocian | 477.1 | |||
| Warendian | 484.3 | |||
| 486.85 | ||||