02294oam 2200601 450 991068983170332120180215112542.0(CKB)5470000002333056(OCoLC)896810372(OCoLC)995470000002333056(EXLCZ)99547000000233305620141123d1976 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierNorth American species of Tempskya and their stratigraphic significance /by Sidney R. Ash and Charles B. Read; with a section on stratigraphy and age of the Tempskya-bearing rocks of southern Hidalgo County, New Mexico, by Robert A. Zeller, JrWashington :United States Department of the Interior, Geological Survey,1976.1 online resource (iii, 42 pages) illustrations, mapsGeological Survey professional paper ;874Title from title screen (viewed October 2, 2014)."A description of two new species of the Early Cretaceous tree fern Tempskya and a discussion of the characters and distribution of the other North American species."Includes bibliographical references (pages 36-40) and index.PaleobotanyCretaceousPaleobotanyNew MexicoHidalgo CountyFerns, FossilGeology, StratigraphicCretaceousCretaceous Geologic PeriodfastGeology, StratigraphicfastPaleobotanyfastNew MexicoHidalgo CountyfastPaleobotanyPaleobotanyFerns, Fossil.Geology, StratigraphicCretaceous Geologic Period.Geology, Stratigraphic.Paleobotany.Ash Sidney R.1928-1387327Read C. B.Zeller Robert A.Geological Survey (U.S.),COPCOPOCLCOOCLCFWAUGPOBOOK9910689831703321North American species of Tempskya and their stratigraphic significance3520010UNINA