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LocNo: 2115Arkona Shale
Country: Canada
Province: Ontario
Locality: Tyleyard, 1.5 mls N of Thedford
Layer: Arkona Shale
Lower Boundary: CDO Arkona Shale base, 392.5 million years
Upper Boundary: CDO Arkona Shale top, 389 million years
Georeference: