96 SIMILAEITT BETWEEN STRATA OF PANZA AND MARGARITA. 



The ostrea, astrodapsis, balanus, scutella, and pecten, were found in the same strata and 

 accompanying each other ; the other fossils occupied the sandstones lying below the upper 

 calcareous layers, having the comminuted shells and other points of resemblance with the beds 

 containing ostrea and hinnites of Santa Margarita. The Panza beds are thicker than those of 

 Santa Margarita, and more variety in the animal life contained in them. Like the latter beds, 

 the Panza strata lie upon the slope of the San Jose range, and have suffered extensively from 

 denudation. 



