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LocNo: 7294Homoc.prereticul. horizon,pl.C
Country: France
Province: Nord-Pas-de-Calais
Locality: Valenciennes,Houillères
Layer: Homoc.prereticul. horizon,pl.C
Lower Boundary: GBY H2c1--H2c2 (eostriol.--prereticul.), 317.3 million years
Upper Boundary: GBY R1a3--R1a4 (R.subretic.--todmorden.), 316.4 million years
Georeference: