11 



The lithologic succession is the same in Pico Canyon as in 

 Ellsmere Canyon, where the sandy shales are fossiliferous. The two 

 areas are only a few miles apart, and the "beds can "be traced as prac- 

 tically continuous between the two areas. It is thus very probable 

 that the Pico Canyon sandy shales are of the same age as those in 

 Ellsmere Canyon, and are of Fernando and not Vaqueros age. 



Fauna 



The following collection was made from a fine grained sandstone 

 interetratified with gravels, near the upper limit of the fine 

 grained beds 



Pelecypoda Gasteropoda 



' - Lcity cf apical gyatam 

 Cardium quadrigenarium Conrad Bulla, sp.? 



Cardium, sp.? Calyptraea filosa Gabb 



Chione fernandoensis, new sp. Chrysodomus arnoldi Rivens 

 Leda taphria Ball Fusus cf . portolaensis 



Pecten sp.? like pabloensis Hassa perpinguis Kinds 

 Solen sicarius Gould Neverita sp.? 



Polynices gallianoia Ball 

 Sigaretus scopulosus Conrad 

 Turitella cooperi Cpr. 



This fauna is essentially of the same age as that collected 

 from Ellsmere canyon, although it is from beds which appear to 

 be about 1^00 feet stratigraphically above the latter horizon. 



