p:lder creek section. 



439 



Feet. 



Kocks. 



Fossils. 





o 



f 500 

 1,000 



1,500 

 2,000 



2,500 





^-1 



Shales with 



some tliin 



sandstones. 



Sandstones. 



Shales eon- I 

 taininoj one 

 25-foot bed of 

 sandstone. 



Massive sand- 

 stone. 



Conglomerate. 



Massive sand- 

 stone 

 with thin 

 eonoflomerate. 



/ Iiioceramu.s. 

 \ Fccten, sp. a. 



{^im III . ( Pacli.ydiscus) newber- 

 ryanuH. 

 Inocerfimus whitneyi. 



f TJietis annulata. 

 I C/ilone vnrlans. 

 J Tellina asJihuriieri 

 I Tellina pari I is. 

 I Gy nodes expansa. 

 [ Anchura calif ornica. 



0,000 ; Shales. 



Conglomerate 



with lime- 

 stone pebbles. 



! Sandstone, 

 3,500 shale and con- 

 glomerate. 



M 



4,030 



4,500 

 5,00() 



5,500 



t),000 



.«,500 

 7,000 



7,500 

 8,000 

 cS,500 



Chiefly con- 

 glomerate. 



Shales with 



thin 

 sandstones. 



Fecten operculiforinis. 

 Cucidbva tnincata. 

 Xernodon rancourerensis. 

 Trigonia eransana. 

 Triyonia leana. 

 Trigonia nquicostata (?) 

 Pecinncidas veatchi. 

 Meekia sella. 

 Chione ranan.s. 

 Caryati.s nifida. 

 ( .0 r alii odn una orcatti. 

 Dentaliani stram ineum . 

 JjUnatia avellana. 

 Anch a ra californ ica. 

 Amm. (Desiuoceras), sp. 



' Peden operculiformis. 

 Exogyra parasitica. 

 Cucnllcca trancata. 

 Trigonia leana. 

 Trigonia eransana. 

 Meekia sella. 

 Coralliochama orcutii. 

 Chione varians. 

 Caryatis nitida. 

 Thetis annulata. 

 Dentalium stramineum. 

 Lunatia avellana . 

 Gyrodes expansa. 

 A nchura calif ornica . 

 Anchura falcif a rmis. 

 Cin alia matthewsoni. 

 Actseon inorncUus. 



Shales. 



Sandstone. 



Shales. 



Shales. 



Shales. 



Shales and 



thin 

 sandstones. 



Shales. 



Pecten ifpercnlijoriiiis. 

 Xeniodun vancourerensiM. 



9,000 



'^^'^^^ Shales and' 

 10,000 ; sandstones. 



j Inoceramus sp 

 1/ 



hnm. {Desmoceras) , sp. c. 



