BULL. GEOL. SOC. AM. 



Ibecond Botcom 



rvtOCENE 

 tOCtNt . 



. Pla.teau Gravei 

 Camden Series . 



Ki 



UPPER ; 



EtACEOUS N 



Glauconitic- - sBi-ov/nstowp 

 Montana — -< 



hiteCiitfs. 



'.Taylor Marls _ 1-="*^ 



Austin ChaiK Ij ' - i 4 \ 



tagie ford. , h^^^^ 



^Dakota LastemxrimDefb^jSe: 



Colorado 



GEOLOGY OF PARTS OF TEXAS, I 

 TO MEDIAL PORTION OF 



