02098oam 2200589 450 991070735950332120160718155738.0(CKB)5470000002463922(OCoLC)891382817(EXLCZ)99547000000246392220140926d1970 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe Foerstia zone of the Ohio and Chattanooga shales an explanation for the stratigraphic zonation of the fossils and a report on a newly discovered occurrence of the Foertia zone in western Ohio /by J.M. Schopf and J.F. Schwietering[Washington, D.C.] :United States Department of the Interior, Geological Survey,1970.Washington :United States Government Printing Office.1 online resource (iii, 15 pages, 2 pages of plates) illustrationsGeological Survey bulletin ;1294-HContributions to stratigraphyTitle from title screen (viewed September 15, 2014).Includes bibliographical references (pages 14-15).Foerstia zone of the Ohio and Chattanooga shales PaleobotanyDevonianPlants, FossilOhioShaleOhioDevonian Geologic PeriodfastPaleobotanyfastPlants, FossilfastShalefastOhiofastPaleobotanyPlants, FossilShaleDevonian Geologic Period.Paleobotany.Plants, Fossil.Shale.Schopf James M(James Morton),1911-1978,857142Schwietering J. F.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707359503321The Foerstia zone of the Ohio and Chattanooga shales3483165UNINA