Crandall — Santa Clara Valley Region m California. 39 



Cretaceous fauna given here has been collected by Dr. J. P. 

 Smith and Dr. L. G. Yates. 



Horsetown Fossils. 



Lytoceras alamedense Smith 

 Phylloceras onoense Stanton 

 Lytoceras Latest Trask 

 Hoplites Pemondi Gabb 

 Lytoceras cf. timotheanum Mayor 

 Lelemnites sp. 



Chico Fossils 



Desmoceras Hoffmanni. Gabb 

 Haploceras Breweri Gabb 

 Bacidites chicoensis Trask 

 Laculites occidentalis Meek 

 Placenticeras californicum Anderson 

 Placenticeras pacificum Smith 

 Lesmoceras cf. selioynianum Whiteaves 

 Holcostephanus suciaensis Meek 

 Lytoceras cf. ccda Stoliczka 

 Phylloceras ramosum Meek 

 Cinulia obliqua Gabb 

 Lnoceramus cf. vancouverensis Shumard 

 Trigonia evansana Meek 

 Pectunculus Yeatchi Gabb 

 Pachydiscus suciaensis Meek 

 Pachydiscus newberryanns Meek 



Of this fauna the following forms are characteristic of the 

 Chico : 



Lesmoceras Hoffmanni Gabb 

 Lacidites chicoensis Trask 

 Placenticeras californicum Anderson 

 Placenticeras pacificum Smith 

 Cinulia obliqua Gabb 

 Pachydiscus neioberryanus Meek 

 Trigonia evansana Meek 



The Horsetown is represented by the characteristic forms 

 below : 



Hopdites Pemondi Gabb 

 Phylloceras onoense Stanton 

 Lytoceras timotheanum Mayor 

 Lytoceras Latesi Trask 



In the general list there is a strong mingling of Chico and 

 Horsetown forms, but the total fauna shows more affinity with 

 the Horsetown than with the Chico. 



