Annual report of the United States Geological Survey to the Secretary of the Interior . CTENOPHYLLUM WARDII, FROM THE JURASSIC OF OROVILLE, CALIFORNIA. LIBRARY OF THE UNIVERSITY af ILLINOIS. PLATE LXT. PLATE LXI. Page. CtENOPHYLLUBfl DENS1FOLIUM Font - 512 LIBRARY OF THE UNIVERSITY of ILLINOIS, U. 8. GFOLOGICAI. SURVFY. CTENOPHYLLUM DENSI FOLlU M, FR-**^ TWENTIETH ANNUAL REPORT PART II PL. LXI

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Keywords: ., book, bookcentury1800, booksubjectgeology, booksubjectwatersupply