01899oam 2200601 450 991070540870332120170427075911.0(CKB)5470000002451304(OCoLC)891572351(OCoLC)995470000002451304(EXLCZ)99547000000245130420140929g19381939 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierSome linguloid shells from the late Devonian and early carboniferous rocks of Pennsylvania and Ohio /by George H. GirtyWashington :United States Department of the Interior, Geological Survey,1939.1 online resource (27 unnumbered pages) illustrationsProfessional paper ;193-CShorter contributions to general geology ;1938-39Title from title screen (viewed September 22, 2014).Includes bibliographical references and index.FossilsPennsylvaniaFossilsOhioRocksPennsylvaniaRocksOhioGeologyPennsylvaniaGeologyOhioGeologyfastRocksfastOhiofastPennsylvaniafastFossilsFossilsRocksRocksGeologyGeologyGeology.Rocks.Girty George Herbert1869-1939,1387025Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910705408703321Some linguloid shells from the late Devonian and early carboniferous rocks of Pennsylvania and Ohio3474550UNINA