GEOLOGIC HORIZONS AND LIFE ZONES. 21 



Cedar Mountain, Ione Valley and Stewart Valley, Nevada, Buwalda, 1914. 



"The faunal assemblage obtained in the Cedar Mountain region shows affinity with the Middle Miocene of Virgin 



Valley, but most nearly approaches the faunal stage of the Barstow Upper Miocene Several differences between the 



Cedar Mountain anil Barstow faunas may be due to geographic variation or may indicate that the Cedar Mountain 



Map of California Showing Important Pliocene Localities. 1. Wild- 

 cat ISeries at Eel River. 2. Wilson 's Ranch near Santa Rosa. 3. Bolinas Bay. 

 4. Merced Series, type section. 5. Purisiina. 6. Pescadero. 7. Ano Nuevo Bay. 

 8. Sargent and Chittenden. 9. Lonoak. 10. Cantua Creek. 11. Priest Valley. 

 12. Coalinga Anticline. 13. Jacalitos Hills. 14. Kieyenhagen Hills. 15. Kettle- 

 man Hills. 16. Cholame Valley. 17. Paso Robles. 18. McKittrick. 19. Santa 

 Maria. 20. Elsmere Canon. 21. Santa Paula. 22. Ventura. 23. Los Angeles. 

 24. Puente Hills. 25. San Diego. 26. Carrizo Creek or Coyote Mountain. 



After Merriam, 1917, fig. 1, p. 199. 

 Fig. 11. Pliocene exposures in California. Supplementary to Fig. 12. 



beds cover a somewhat longer time range, including both older and younger beds than those from which collections have 

 been obtained in the Barstow (p. 169) . . . .On the whole there seems good reason for considering the Cedar Mountain fauna 

 as near the Barstow and the Santa Fe in stage, .... " (p. 172) (Merriam, 1916). 



