LocNo: 4509Homoceras undulatum Zone (H2b)
| Country: |
Great Britain
|
| Province: |
England,Lancashire
|
| Locality: |
Blackburn, Samlesbury Bottoms, R. Darven
|
| Layer: | Homoceras undulatum Zone (H2b) |
| Lower Boundary: |
GBY H2a--H2b (Hu.proteus--Ho.undulatum), 317.5 million years
|
| Upper Boundary: |
GBY H2b--H2c (undulatum--V.eostriolatus), 317.4 million years
|
| Georeference: |