MAP SHOWING THE DISTRIBUTION OF THE LITHOLOGIC DIVISIONS OF THE EASTERN GULF CRETACEOUS DEPOSITS AND THEIR AGE EQUIVALENCIES 



The boundaries of the divisions have been compiled in part from the published maps of previous investigators and in part from the field notes of the author 



By L. W. Stephenson 

 Scale i.RMflOo 



86 p_ £G 60 7B m 101) Miles 



