02684oam 2200733 450 991070656520332120171124112612.0(CKB)5470000002456794(OCoLC)892425160(OCoLC)995470000002456794(EXLCZ)99547000000245679420141006d1960 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierAmmonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states /by Ralph W. lmlayWashington :United States Department of the Interior, Geological Survey,1960.1 online resource (106 unnumbered pages) illustrations, maps +1 plateGeological Survey professional paper ;334-FShorter contributions to general geologyTitle from title screen (viewed September 30, 2014)."The ammonite succession provides correlations within the Pacific Coast States and with other areas. This suggests that Cretaceous strata in California and Oregon rest disconformably on Jurassic strata."Includes bibliographical references (pages 221-223) and index.Ammonites of early cretaceous age AmmonoideaCaliforniaAmmonoideaOregonAmmonoideaWashington (State)Geology, StratigraphicCretaceousPaleontologyCretaceousPaleontologyCaliforniaPaleontologyOregonPaleontologyWashington (State)AmmonoideafastCretaceous Geologic PeriodfastGeology, StratigraphicfastPaleontologyfastCaliforniafastOregonfastWashington (State)fastAmmonoideaAmmonoideaAmmonoideaGeology, StratigraphicPaleontologyPaleontologyPaleontologyPaleontologyAmmonoidea.Cretaceous Geologic Period.Geology, Stratigraphic.Paleontology.Imlay Ralph W(Ralph Willard),1908-1989,1390990Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910706565203321Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states3485549UNINA