LEADER 02404oam  2200649I  450 
001 9910707300503321
005 20160519131840.0
035   $a(CKB)5470000002462498
035   $a(OCoLC)889600599
035   $a(EXLCZ)995470000002462498
100   $a20140829d1990      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aAmmonites and some characteristic bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming /$fby William A. Cobban
210  1$a[Reston, Va.] :$cDepartment of the Interior, U.S. Geological Survey,$d1990.
210  2$a[Washington, D.C.] :$cUnited States Government Printing Office.
215   $a1 online resource (iv, 13 pages, 11 pages of plates) $cillustrations, maps
225 1 $aEvolution of sedimentary basins--Powder River Basin ;$vch. B
225 1 $aU.S. Geological Survey Bulletin ;$v1917-B
300   $aTitle from title screen (viewed Aug. 20, 2014).
320   $aIncludes bibliographical references.
517 3 $aAmmonites and bivalves from Frontier Formation, Wyoming
606   $aAmmonoidea$zWyoming$zNatrona County
606   $aBivalves, Fossil$zWyoming$zNatrona County
606   $aGeology, Stratigraphic$yCretaceous
606   $aPaleontology$zWyoming$zNatrona County
606   $aAmmonoidea$2fast
606   $aBivalves, Fossil$2fast
606   $aCretaceous Geologic Period$2fast
606   $aGeology, Stratigraphic$2fast
606   $aPaleontology$2fast
607   $aFrontier Formation
607   $aUnited States$zFrontier Formation$2fast
607   $aWyoming$zNatrona County$2fast
615  0$aAmmonoidea
615  0$aBivalves, Fossil
615  0$aGeology, Stratigraphic
615  0$aPaleontology
615  7$aAmmonoidea.
615  7$aBivalves, Fossil.
615  7$aCretaceous Geologic Period.
615  7$aGeology, Stratigraphic.
615  7$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   $a9910707300503321
996   $aAmmonites and some characteristic bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming$93460082
997   $aUNINA