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By: Clark, John, - Beerbower, James R. - Kietzke, Kenneth K.,Edition:Publication info: [Chicago], Field Museum of Natural History, 1967Volume: v.5 (1967)Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Badlands (S.D. and Neb.) Geology Geology, Stratigraphic Oligocene Paleoclimatology PaleoecologyBHL Collections: