01877oam 2200541 450 991070709520332120180508080552.0(CKB)5470000002460531(OCoLC)896810814(OCoLC)995470000002460531(EXLCZ)99547000000246053120141123d1981 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierEarly Jurassic ammonites from Alaska /by Ralph W. ImlayWashington :United States Department of the Interior, Geological Survey,19.1 online resource (iv, 49 pages, 12 pages of plates) illustrations, mapsGeological Survey professional paper ;1148Title from title screen (viewed October 9, 2014)."Studies of Early Jurassic ammonites from Alaska provide close correlations with Lower Jurassic ammonite zones in Europe and with ammonite successions elsewhere in the world."Includes bibliographical references (pages 43-45) and index.AmmonoideaPaleontologyJurassicPaleontologyAlaskaAmmonoideafastJurassic Geologic PeriodfastPaleontologyfastAlaskafastAmmonoidea.PaleontologyPaleontologyAmmonoidea.Jurassic Geologic Period.Paleontology.Imlay Ralph W(Ralph Willard),1908-1989,1390990Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707095203321Early Jurassic ammonites from Alaska3494065UNINA