U. S. GEOLOGICAL SURVEY 



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MOMOORAPH XVIII PL. XXXIV 





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CONID/E, CASSIDID/E, DOLIID/E, NATICID/E, ONUSTID/E, SOLARIID/E, SCALARIID/E, AND TURRITELLID-E OF THE E-CENE LAYERS OF 



THE UPPER BED GREENSAND MARLS. 



