UNIVERSITY OF CALIFORNIA PUBLICATIONS 



BULLETIN OF THE DEPARTMENT OF 



GEOLOGY 



FAUNA OF THE MARTINEZ EOCENE OF 

 CALIFORNIA 



BY 



ROY ERNEST DICKERSON 



CONTENTS 



PAGE 



Introduction 64 



Review of the Literature 64 



Areal Distribution of the Martinez in California 69 



Principal Localities 69 



Distribution of the Martinez Compared with that of the Tejon 69 



Description of the Typical Martinez Sections in California 71 



Lower and Middle Zones of Martinez North of Mount Diablo 71 



Fauna of the Meretrix dalli Zone 71 



Fauna of the Trochocyathus zitteli Zone 74 



Martinez and Tejon South of Mount Diablo 77 



Type Locality of the Martinez 79 



Stratigraphy 79 



Relations to the Martinez at Selby Smelter 81 



Faunal Zones 81 



Martinez at Benicia 87 



Martinez at Selby Smelter 88 



Martinez at Lower Lake, Lake County, California 89 



Transitionary Beds of Gabb 89 



Stanton's Discussion of the Fauna 91 



Stratigraphy and Structure 92 



Fauna of Martinez at Lower Lake 95 



Martinez of San Mateo County 99 



Eocene (?) of the Santa Cruz Quadrangle 102 



Summary of Martinez Stratigraphy 103 



