| 
Country:
 | 
Ireland 
 | 
| 
Province:
 | 
Leitrim Co. 
 | 
| 
Locality:
 | 
Dowra, Tullyclevaun and Shass junction 
 | 
| 
Layer:
 | 
Tulyclevaun Shale Member | 
| 
Lower Boundary:
 | 
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
 
 | 
| 
Upper Boundary:
 | 
DER lowest E1--E1 alpha, 326 million years
 
 | 
| 
Georeference:
 | 
 |