| Computer Code: |
-1516 |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Late Ordovician Epoch (OLA)
— Late Ordovician Epoch (OLA) |
| Lithological Description: |
[Obsolete: use DRSH] |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Nicholson, H A, and Marr, J E. 1887. On the occurrence of a new fossiliferous horizon in the Ordovician Series of the Lake District. Geological Magazine, Decade 3, Vol. 4, 339–344. |
| Elles, G L, and Wood, E M R. 1895. Supplementary notes on the Drygill Shales. Geological Magazine, Vol. 2, 246-249. |
| Dean, W T. 1963. The Stile End Beds and Drygill Shales in the east and north of the English Lake District. Bulletin of the British Museum of Natural History, Vol. 9, No. 3, 47-65. |
| Eastwood, T, Hollingworth, S E, Rose, W C C, and Trotter, F M. 1968. Geology of the country around Cockermouth and Caldbeck. Memoir of the Geological Survey of Great Britain, England and Wales, Sheet 23. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
