Stratigraphy and preliminary biostratigraphy of the Flagstaff Rim area, Natrona County, Wyoming - Emry, Robert J. (City of Washington : Smithsonian Institution Press, 1973)
Bibliography: p. 41-43.
Keywords: Geology, Stratigraphic -- Oligocene; Vertebrates, Fossil -- Wyoming -- Natrona County; Geology -- Wyoming -- Natrona County