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Biostratigraphy and Paleontology of Middle-Upper Devonian Boundary Beds, Gypsum Cliffs Area, Northeastern Alberta
註釋"This report describes and illustrates two of the important Devonian fossil groups of the Slave Point Formation and Peace Point Member outcropping at Gypsum Cliffs on Peace River in northeastern Alberta. It is based on fossil collections made in 1977 and 1961 and incorporates detailed field observations made in 1956." --