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LocNo: 4530112-116 feet
Country: Great Britain
Province: England,Derbyshire
Locality: Alport Dale Borehole
Layer: 112-116 feet
Lower Boundary: GBY H2b--H2c (undulatum--V.eostriolatus), 317.4 million years
Upper Boundary: GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
Georeference: