02136oam 2200577 450 991070574140332120170705105812.0(CKB)5470000002452994(OCoLC)891575044(OCoLC)995470000002452994(EXLCZ)99547000000245299420140929d1968 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierAn early Reticuloceras Zone fauna from the Hale Formation in northwestern Arkansas /by Mackenzie Gordon, JrWashington :United States Department of the Interior, Geological Survey,1968.1 online resource (iii, A21 pages, 2 pages of plates) illustrations, mapsGeological Survey professional paper ;613-AContributions to paleontologyTitle from title screen (viewed September 24, 2014)."Descriptions and illustrations of nine Lower Pennsylvanian goniatites from the lower part of the Morrow Series."Includes bibliographical references (pages A18-A19) and index.AmmonoideaArkansasWashington CountyPaleontologyPennsylvanianPaleontologyArkansasWashington CountyFormations (Geology)ArkansasWashington CountyAmmonoideafastPaleontologyfastPennsylvanian Geologic PeriodfastArkansasWashington CountyfastAmmonoideaPaleontologyPaleontologyFormations (Geology)Ammonoidea.Paleontology.Pennsylvanian Geologic Period.Gordon Mackenzie1913-1389569Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910705741403321An early Reticuloceras Zone fauna from the Hale Formation in northwestern Arkansas3537888UNINA