ARNOLD — THE PALEONTOLOGY AND STRATIGRAPHY OF SAN PEDRO. 



47 



SCAPHOPODA. 



Cadulus nitenlior Carpenter 



Dentalium indianorum Carpenter 



Denialium hexagonum Sowerby 



Dentalium pseudohexaijonum Dall 



Dentalium semipolitum Brodeeip & Sowerby 



CRUSTACEA. 



Balanus concavus Bronn 



Cancer breweri Gabb 



PISCES. 

 Urolophus halleri ( ?) Cooper 



> 

 iJ 





X 



N 

 X 



X 

 E 



R 



Pleistocene. 



Upper San Pedro. 







C 

 M 

 R R 



M 



M 



" ?. 

 00 



R 

 C 



Lower 

 San Pedro. 



•O 00 



R 



M 

 C 

 R 



K 



ft- 3 



R 



M 



M 



Pliocene. 



a o 



