Bulletin No. 204 



Series C, Systematic Geology and Paleontology, 58 



DEPARTMENT OF TIIK INTERIOR 



UNITED STATES (GEOLOGICAL SURVEY 



CHARLES 1). \VALCX)TT, DIRECTOR 



FOSSIL FLOEA 



JOHN DAY BASIN 



OliEGON 



e.^ 



FRANK MALL KNO\VLTON 



WASHINCxTON 



GOVERNMENT PRINTING OFFICE 

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