ARNOLD — THE PALEONTOLOGY AND STRATIGRAPHY OF SAN PEDRO. 



37 



Mytilimtria nullalli Coxrad 



Neara pectinata Carpenter 



Sfucula (Acila) castrensis Hinds 



Nucttla supraslriata Carpenter 



Ostrea liirida Carpenter 



Panomya ampla Da ll 



Panopea generosa Gould 



Pecien (Paiinopeclen) cauriniis Gould 



Pecten [Pecten) dentatus Sowerby 



Pecten {Chlamys) hastatus Sowerbt 



Pecten (Chlamys) herkeus Gould 



Pecten {Chlamys) herkeus var. strategus Dall 



Pecten (Chlamys) jordani, ap. nov 



Pecten tatiauritus Conrad 



Pecten tatiauritus var./ragilis, var. nov 



Pecten latiaurilus var. monolimeris Conrad 



Pecten [Plagioctenium) newsomi, sp. nov 



Pecten slearnaii Dall 



Pecten (Nodipecten) subnodosus Sowerby 



Pecten (Plagioctenium) ventricosus Sowerby 



Pfcten (Plagioctenium) ventricosus Sowerby var.. . 



Periploma argentaria Conrad 



Petricola carditoides CoifRAD 



Pelricola (Petricolaria) cognata C. B. Adams 



Petricola denttculata Sowerby 



Pholadidea penita Conrad 



Platyodon cancellatus Conrad 



Pododesmus (Monia) macroschisma Deshayes 



Protocardia centifilosa Carpenter 



Psammobia edentula Gabb 



Psephis salmonea Carpenter 



Psephis taniilla Gould 



Rata undulata Gould 



Rupellaria lamellifera Conrad 



Sanguinolaria nuttalli Conrad 



Saxidomus aratus Gould 



> 





X 

 X 



X 

 N 

 X 

 N 

 X 

 N 

 S 

 X 

 N 

 N 

 E 

 X 

 E 

 X 

 E 

 E 

 S 

 X 

 E 

 X 

 X 

 X 



s 



X 

 X 

 X 



X 



? 



c 



N 

 X 

 X 

 X 

 X 



Plbistocbkb. 



Upper San Pedro. 



•O CO 



K 



M 



K 



E 



M 



K 

 M 

 E 



M 

 B 

 K 



R 



3^ 



c 



R 

 E 

 K 



R 

 C 

 R 

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 M 

 B 

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 M 

 E 

 E 





M 

 C 



C 

 E 



C 

 R 

 M 

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M 



E 

 E 



C 

 M 

 E 



d O 



u V 



(JO 



B 



R 



E 



M 



M 

 B 

 E 



E 

 C 



Lower 

 Sau Pedro. 



E 

 E 

 R 

 E 

 E 

 E 

 B 

 M 



R 

 E 

 E 

 B 

 E 



B 

 M 

 E 



E 



E 

 E 

 E 



E 



R 

 B 



B 



E 

 B 



C 



M 



M 



M 



