ARNOLD— THE PALEONTOLOGY AND STKATKiUAPHY OF SAN PEDUO. 



45 



Scahi hintUii Carpenter 



Scala indianorum Carpknter 



Scala tincta Carpenter 



Sella assimilata C. B. Adams 



Se.rpulorbh siiiKnniijprus Carpknter 



Sigaretus debiiis Gould 



Siphonalia kellellii Forbes 



SolnricUa cidaris A. Ada ms 



Solariella pi'ramabi/is Carpenter 



Spiroglyph us IHwUa Morch 



Styliferina tenulsculpla Carpenter 



Taranis strongi sp. nov 



Terebra (Acus) simplex Carpenter 



T/idlolid caffi'd Gabb 



Tornatina cerealis Gould 



Tornatina culcitclla Gould 



ToriuUina vxhnUi Baird 



Tornatinn liarpn Dall 



Triforis advcrsa Montague 



Trivia californica Gra v 



Trivia solandri Gray 



Tritonium gibbosxis Broderip 



Tro/'hoii (Boreotrophon) cerriiensis, sp. nov 



Trophon (Boreotrophon) i/rarilis Perry 



Trophon (Boreotrophon) rmiUicoslalus Eschscholtz. 



Trophon (Boreotrophon) pedroanus, sp. uov 



Trophon (Boreotrophon) scnlariformis Gould 



Trophon sluarti Smith 



Trophon orpheus var. precursor, var. uov 



Trophon (Boreotrophon) tenuisculpta Carpenter. .. 

 Trophon (Boreotrophon) iriangulatus Carpenter.. 



Turbonilla adh'ri (Dall & Bartsch), sp. nov 



Turbonilla arnoldi (Dall & Bartsch), sp. nov 



Turbonilla aurantia Carpenter 



Turbonilla crebrijtlata Carpenter 



CB'O 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



c 



X 



J 



E 

 X 

 X 

 X 

 X 

 X 

 X 

 N 

 X 

 X 



s 



E 

 X 

 N 

 E 

 N 

 N 

 E 

 E 

 X 

 E 

 E 

 X 

 X 



Pleistocene. 



Pliocene. 



Upper San Pedro. 



re -^ 

 ■o « 



R 

 R 

 R 



M 



C 

 C 

 E 



M 

 R 

 R 



M 

 R 



R 



R 



^fc 



R 

 R 

 R 



R 



R 

 R 



R 

 M 



R 



R 

 R 



uo 



M 



M 

 R 



M 



R 



R 



R 



Lower 

 San Pedro. 



»t3 

 13 ffl 



E 

 E 

 R 

 R 

 R 



E 

 R 



M 

 R 

 E 



M 



E 



R 



E 



R 

 R 

 R 

 C 

 C 

 E 

 M 



R 

 R 

 E 

 E 

 R 



■O.tft 

 0.= 



2" 



M 

 R 

 R 



E 



M 



M 



M 



R 

 R 



R 

 R 



R 

 B 



M 



E 

 C 



C 

 R 



