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Country:
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Great Britain 
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| 
Province:
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England,Devonshire 
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Locality:
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Dulverton Station, Hele Quarries 
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| 
Layer:
 | 
P1a-P1b | 
| 
Lower Boundary:
 | 
DER Go alpha 3--Go alpha 4  [13.00], 332 million years
 
 | 
| 
Upper Boundary:
 | 
DER Go beta falcatus--Go beta gracilis, 329.1 million years
 
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| 
Georeference:
 | 
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