| Computer Code: |
TRL |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Brigantian Substage (CX)
— Brigantian Substage (CX) |
| Lithological Description: |
[Obsolete: use CFML] Thick units of thinly bedded dark argillaceous limestone with shale bands, interbedded with units of pale massive skeletal limestone. |
| Definition of Lower Boundary: |
Lower contact taken at the first palaeosol below the lowest unit of argillaceous limestone and shale marking the boundary with the underlying Penmon Limestone. |
| Definition of Upper Boundary: |
Upper contact not exposed. |
| Thickness: |
92.5 metres. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Cliff sections between Moelfre and Pen-y-Coed centred on Traeth Bychan, Sheet 94. |
| Reference(s): |
| Davies, J R. 1983. The stratigraphy, sedimentology and palaeontology of the Lower Carboniferous of Anglesey. Unpublished PhD thesis, University of Keele. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E094
|
