1 913 ] J or clan-Be al: Supplementary Notes on Fossil Sharks 245 



from California. Geographically these are nearer to California 

 than the fauna of Europe. Many shark teeth of similar types 

 also occur in the Tertiary of Kansas. 



The new material examined in this paper is from the follow- 

 ing localities : 



1. The collection above mentioned from the lower Miocene, 

 Temblor horizon, near Oil City, Kern County, California, the 

 work of Mr. Charles Morrice and others. 



2. One specimen from the collections of the University of 

 California, taken from Chico (upper Cretaceous) sandstone. 



3. A collection of fragments of broken teeth from the Eocene, 

 Oligocene, and Miocene of various localities on the coast of 

 Oregon has been presented by Mr. Harold Hannibal of Stanford 

 University. 



Geologic Eange of Western American Sharks 



Cret- Pleisto- 

 Species Triassic aceous Eocene Miocene Pliocene cene Recent 



Acrodus wempliae 



Jordan, x 







Myliobatis merriami 







Jordan and Beal, 





X 



Carcharhinus antiquus 







Agassiz, 





X 



Carcharias elavatus 







Agassiz, 





X 



Carcharias morricei 







Jordan and Beal, 





X 



Careharodon arnoldi 







Jordan, 







Careharodon megalodon 







Charl. (branneri 







Jordan) 





X 



Careharodon rectus 







Agassiz, 





X 



Careharodon riversi 







Jordan, 





X 



Dalatias oecidentalis 







Agassiz, 





X 



Galeocerdo productus 







Agassiz, 





X 



Galeorhinus hannibali 







Jordan and Beal, 





X 



Hemipristis chiconis 







Jordan, 



X 





Hemipristis hetero- 







pleurus Agassiz, 





X 



