01796oam 2200517 450 991070726700332120160608115120.0(CKB)5470000002462836(OCoLC)889600564(EXLCZ)99547000000246283620140829d1990 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierTaxonomic revision of the Spermatopsida of the Oligocene Creede flora, southern Colorado /by Jack A. Wolfe and Howard E. Schorn[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,1990.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 40 pages, 13 pages of plates) illustrationsU.S. Geological Survey Bulletin ;1923Title from title screen (viewed Aug. 20, 2014).Includes bibliographical references.PaleobotanyOligocenePaleobotanyColoradoOligocene Geologic EpochfastPaleobotanyfastCreede Formation (Colo.)ColoradofastColoradoCreede FormationfastPaleobotanyPaleobotanyOligocene Geologic Epoch.Paleobotany.Wolfe Jack A.1936-1386086Schorn Howard E.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707267003321Taxonomic revision of the Spermatopsida of the Oligocene Creede flora, southern Colorado3461861UNINA