3o6 CALIFORNIA ACADEMY OF SCIENCES. 



Dosiuia moiitana Conrad. 

 Dosiiiia lougula Conrad. 

 Dosiuia suboblique Conrad, 

 a. The gypseous and ferruginous sandstones. 

 Mytilus inezensis Conrad. 

 Pachydesnia inezensis Conrad. 

 Turritella variata Conrad. 

 Ostrea. 



The gypseous and ferruginous sandstones do not seem 

 to have been very fossihferous and are associated with 

 conglomerate and hgnitic layers. They would thus seem 

 to have some similarity to the Carmelo series of Lawson. 



Among the specimens found at the head of Stevens' 

 Creek were the following: 



Ostrea sp. ind. 



Liropecten estrellanus Conrad sp. 

 Turritella hoffmanni Gabb. 

 Dosiuia sp. ind. 



Ostrea titan has been found near this point. 



In Alum Rock Canon in what are thought to be the 



same beds were found: 



Natica sp. 



Ostrea titan Conrad. 



Liropecten estrellanus Conrad sp. 



Glycimeris generosa? Gould. 



Nummuiites? 



Assuming that the younger part at least of the series is 

 of Miocene age there seems to be some evidence that 

 part of the series is of Tejon (Eocene) age. There is 

 claimed to be a striking resemblance between the sand- 

 stone of Searsville Valley and the Tejon sandstones. 



In a well near Haakerville light colored sandstone, full 

 of the stems of some plant, was found. Mr. Gabb re- 

 ports the same stems, and identifies them with fucoids in 

 the " Cretaceous rocks overlying the coal at Mount 

 Diablo."* These beds have since been shown to be 



* Geol. Surv. of Cal., Geology, vol. i, p. 71. 



