01974oam 2200553 450 991070963850332120180607084337.0(CKB)5470000002471853(OCoLC)896811048(OCoLC)995470000002471853(EXLCZ)99547000000247185320141123d1985 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierEarly and middle Bajocian (middle Jurassic) ammonites from southern Alaska /by Ralph W. ImlayWashington :Department of the Interior, U.S. Geological Survey,1984.1 online resource (iv, 38 pages, 2 unnumbered pages of plates) illustrations, mapsU.S. Geological Survey professional paper ;1322"Studies of the early and middle Bajocian ammonites of southern Alaska provide close age determinations and correlations with Europe, Arctic Alaska, Arctic Canada, and the Pacific Coast region in general."Includes bibliographical references (page 38).Early and middle Bajocian AmmonoideaPaleontologyJurassicPaleontologyAlaskaAmmonoideafastJurassic Geologic PeriodfastPaleontologyfastAlaskafastAmmonoidea.PaleontologyPaleontologyAmmonoidea.Jurassic Geologic Period.Paleontology.Imlay Ralph W(Ralph Willard),1908-1989,1390990Geological Survey (U.S.),COPCOPOCLCOOCLCFCUSGPOBOOK9910709638503321Early and middle Bajocian (middle Jurassic) ammonites from southern Alaska3471004UNINA