LocNo: 3108H2a
| Country: |
Great Britain
|
| Province: |
England,Lancashire
|
| Locality: |
Blackburn, Samlesbury Bottoms, R.Darwen
|
| Layer: | H2a |
| Lower Boundary: |
GBY H1b-H2a (Hudsonoceras proteus base), 317.7 million years
|
| Upper Boundary: |
GBY H2a--H2b (Hu.proteus--Ho.undulatum), 317.5 million years
|
| Georeference: |