| Computer Code: |
PLTB |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Courceyan Substage (CF)
— Courceyan Substage (CF) |
| Lithological Description: |
Thin limestone, phosphatic in part, locally conglomeratic, crinoidal and crowded with fish remains. |
| 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: |
Widely but patchily developed in the area around Bristol. |
| Parent Unit: |
Avon Group (AVO)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
