U. S. GEOLOGICAL SURVEY 



MONOGRAPH LIV PLATE CVIM 







X. ASTRODAPSIS TUMIDUS REMOND IN MATRIX, SANTA MARGARITA FORMATION (UPPER 

 MIOCENE), NACIMIENTO RIVER, SAN LUIS OBISPO COUNTY, CAL. 



B. DENDRASTER GIBBSII (REMOND) IN UPPER MIOCENE (?) BEDS, K. W. JONES RANCH, KINGS 

 COUNTY, 20 MILES SOUTHEAST OF COALINGA, FRESNO COUNTY, CAL. 



