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100   $a20140929d1969      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 14$aThe late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States /$fby William A. Cobban
210  1$aWashington :$cU.S. Department of the Interior, Geological Survey,$d1969.
215   $a1 online resource (iii, 29 pages, 5 pages of plates) $cillustrations, map
225 1 $aGeological Survey professional paper ;$v619
300   $aTitle from title screen (viewed September 24, 2014).
300   $a"Three chronological forms each of Scaphites leei and Scaphites hippocrepis occur in dimorphic pairs and provide a means of correlating thin units of strata."
320   $aIncludes bibliographical references (pages 24-27) and index.
517   $aLate Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis 
606   $aAmmonoidea$zWest (U.S.)
606   $aPaleontology$yCretaceous
606   $aPaleontology$zWest (U.S.)
606   $aAmmonoidea$2fast
606   $aCretaceous Geologic Period$2fast
606   $aPaleontology$2fast
607   $aUnited States, West$2fast
615  0$aAmmonoidea
615  0$aPaleontology
615  0$aPaleontology
615  7$aAmmonoidea.
615  7$aCretaceous Geologic Period.
615  7$aPaleontology.
700   $aCobban$b William A.$f1916-2015,$01390881
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910705650203321
996   $aThe late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States$93460333
997   $aUNINA