THE PALEONTOLOGY AND STRATIGRAPHY OF THE MARINE 

 PLIOCENE AND PLEISTOCENE OF SAN PEDRO, 



CALIFORNIA. 



BY RALPH ARNOLD. 



CONTENTS. 

 Plates I-XXXVII. 



Page 



Introduction and Acknowlkdgments 9 



Part I. Gp^neisax Di.scus.sion. 



CHAPTER I. TOPOGRAPHY AND GEOLOGY OF SAN PEDRO.. 11 



1 . Topography 11 



2. General Geology 12 



3. Pliocene 14 



Deadmaii Island -. 14 



Thnm's Point 17 



4. Pleistocene 17 



The San Pedro Series 17 



Lower San Pedro Series 18 



Upper Sa7i Pedro Series 23 



Raised Beach Formation 33 



5. Post-Pleistocene Deposit.s 33 



6. Alphabetical List showing the distribution of Species in the vicinity of San Pedro... 34 



CHAPTER II. THE UPPER PLIOCENE AND PLEISTOCENE FORMATIONS OF OTHER LOCALITIES 



ON THE PACIFIC COAST 43 



PuGET Sound South to Pismo, San Luis Obispo County 48 



Santa Barbara and Vicinity South to San Juan Capistrano 50 



Ventura 53 



Port Los Angeles 56 



San Clemente Island 56 



Newport 56 



San Juan Capistrano 57 



San Diego and Vicinity 57 



Pacific Beach — Pliocene 57 



Pacific Beach — Pleistocene 58 



.San Dieijo Mesa — Pliocene 59 



Twenty-sixth Street— Pleistocene 59 



Spanish Biijhl —Pleistocene 59 



CHAPTER IIL FAUNAE RELATIONS 65 



1. Pliocene 65 



2. Pleistocene 66 



The Loii'er San Pedro Series 66 



The Upper San Pedro Series 66 



3. Relation of the Late Pliocene, Plelstocene, and Living Faunas of California to the 



Fauna of Japan 67 



(7) 



