Darriwilian age - Sandbian age
International Chronostratigraphic Timescale | |||
---|---|---|---|
Ordovician | Late Ordovician | Hirnantian | 443.8 |
Katian | 445.2 | ||
Sandbian | 453 | ||
Middle Ordovician | Darriwilian | 458.4 | |
Dapingian | 467.3 | ||
Early Ordovician | Floian | 470 | |
Tremadocian | 477.7 | ||
485.4 |
International Chronostratigraphic Timescale | |||
---|---|---|---|
Ordovician | Late Ordovician | Hirnantian | 443.8 |
Katian | 445.2 | ||
Sandbian | 453 | ||
Middle Ordovician | Darriwilian | 458.4 | |
Dapingian | 467.3 | ||
Early Ordovician | Floian | 470 | |
Tremadocian | 477.7 | ||
485.4 |