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LocNo: 3233upper Pitkin Fm.
Country: USA
Province: Arkansas, Searcy Co.
Locality: Marshall, 1.5 mls E of Leslie
Layer: upper Pitkin Fm.
Lower Boundary: UAR lower--upper Pitkin, 322.5 million years
Upper Boundary: UAR Upper Pitkin--Imo Formation, 321 million years
Georeference: