26 GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. 



Zones H and I, which may be considered with the material from 

 Bluffs 2 and 3 as one unit as far as the Foraminifera are concerned, 

 seem to be in general early Miocene, possibly upper Oligocene. The 



Distribution of fossil Foraminifera, Santo Domingo. 



evidence would seem to favor Miocene. Here is an assemblage of 

 31 species, several of which are represented by abundant specimens. 

 The foraminiferal fauna is typical of shallow-water tropical conditions, 

 while the few specimens of Orbulina and Globigerina do not occur in 

 sufficient numbers to indicate any considerable depth. Their presence 

 in very small numbers is only confirmatory of the shallow-water condi- 

 tions which the more abundant species clearly indicate. 



