Geologic Age Log, Murphy Corporation, No. 1 East Poplar Unit, Roosevelt Co., Montana
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Geology topics
Reuben James Paleontological Data by Ross
Publications and source records attributed to Reuben James Paleontological Data by Ross.
Geologic Age Log, Shell Oil Company, No. 1 NPRR, Dawson Co., Montana
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Geologic Age Log, Shell Oil Company, No. 1 Pine Unit, Wilbaux Co., Montana
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