| Country: |
Great Britain
|
| Province: |
England,Lancashire
|
| Locality: |
Blackburn, Samlesbury Bottom, R.Darwen
|
| Layer: | E2c3 |
| Lower Boundary: |
DER E2b--E2c(Cravenocerat.--Nuculoceras), 321 million years
|
| Upper Boundary: |
Arnsbergian--Chokierian [ARN--CHO], 319 million years
|
| Georeference: |
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