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A summary of the U.S. Geological Survey 1999 resource assessment of selected coal zones in the northern Rocky Mountains and Great Plains region, Wyoming, Montana, and North Dakota
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Palynostratigraphy in relation to sequence stratigraphy, Straight Cliffs Formation (Upper Cretaceous), Kaiparowits Plateau, Utah
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Palynostratigraphy of the Tullock Member (lower Paleocene) of the Fort Union Formation in the Powder River Basin, Montana and Wyoming
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Plants and the K-T boundary
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