Stratigraphy
Volkhov Stage
| Belongs to | Ontika Subseries |
| Type | chronostratigraphy |
| Rank | Stage |
| Scope | regional |
| Status | formal standard |
| Author | Raymond |
| Year | 1916 |
| Etymon | Volkhov river, Russia |
| Age top (Ma) | 467.5 |
| Age base (Ma) | 471.8 |
| Age (Ma) | Middle Ordovician |
| Age reference | Cooper & Sadler, 2004 |
| Index | BII |
| Alt. index | O2VL |
| Date changed | 2022-12-05 |
Locality | Type | From (m) | To (m) | Reference | Remarks | |
|---|---|---|---|---|---|---|
unspecified | Hints, L. et al., 1993a | Distinguished in NW Russia |
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