Middle Ordovician
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Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age (Ma) | Age | |||
---|---|---|---|---|---|---|---|---|---|---|---|
Base | Top | ||||||||||
Dapingian | chronostratigraphy | Stage | global | Middle Ordovician | 470.0 | 467.3 | |||||
Darriwilian | O2dr | chronostratigraphy | Stage | global | Middle Ordovician | 467.3 | 458.4 |
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