Stratigraphy
Ordovician
Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age (Ma) | Age | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Base | Top | ||||||||||
| Öland Series | chronostratigraphy | Series | regional | Baltic Ordovician | 489.8 | 463.8 | Ordovician | ||||
| Latorp Superstage | BI | chronostratigraphy | Superstage | regional | Ontika Subseries | 483.4 | 471.8 | Ordovician | |||
| Hunneberg Stage | BIa | O1HN | chronostratigraphy | Stage | regional | Latorp Superstage | 483.4 | 476.4 | Ordovician | ||
| Baltic Ordovician | chronostratigraphy | System | regional | Baltic chronostratigraphy | Ordovician | ||||||
| Ontika Subseries | chronostratigraphy | Subseries | regional | Öland Series | 483.4 | 463.8 | Ordovician | ||||
| Purtse Subseries | chronostratigraphy | Subseries | regional | Viru Series | 463.8 | 458.2 | Ordovician | ||||
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