440 University of California Publications in Geology [Vol. 9 



dentata Cooper, Ficopsis cooperii Gabb, are reported from the upper 

 part of the Umpqua formation in Oregon, Nyctilochus diegoensis 

 (Gabb) from the Siphonalia sutterensis zone at Oroville, Megisto- 

 stoma striata Gabb, Mitramorpha parsonsi Dickerson, from the top of 

 the white sandstone member of the Tejon north of Coalinga, Nycti- 

 lochus pulcher (Weaver), from the lowermost green shales of the 

 Tejon in the Pacheco syncline, Metula harrisi Dickerson from lower 

 Tejon strata north of Coalinga. Seraphs erraticus (Cooper) occurs 

 in the middle section of the Tejon south of Mount Diablo. Of all the 

 forms listed, Metula harrisi and Nyctilochus pulcher are reported 

 only from the lowermost zone of the Tejon group, the Turbinolia 

 zone. The great number of characteristic species common to the San 

 Diego Eocene and the type Tejon leaves no doubt as to their equival- 

 ence, and it is evident that the faunal stage represented at San Diego 

 is that of the Rimella simplex zone. (See figure 12.) 



DESCRIPTIONS OF TE JON-EOCENE LOCALITIES IN SAN DIEGO 



COUNTY 



694. La Jolla Quadrangle, San Diego County, California. Tejon group. 

 Lat. 32° 47' 30"; Long. 117° 11' just east of Morena in Tecolote Canon. 

 Coll., Wm. Kew and R. E. Dickerson. 



695. San Diego Quadrangle, San Diego County, California. Tejon 

 group. Point Loma. Coll., Wm. Kew. 



696. La Jolla Quadrangle, San Diego County, California. Tejon group. 

 Lat. 32° 48'; Long. 117° 11'. N. E. of Morena in Tecolote Valley. Coll., 

 Wm. Kew. 



697. San Diego Quadrangle, San Diego County, California. Tejon group. 

 San Elijo Valley, McKinnon's Ranch. Coll., Wm. Kew. 



2226. La Jolla Quadrangle, San Diego County, California. Tejon 

 group. Lat. 33° 50'; Long. 117° 14'. Rose Canon, S. E. of Soledad 

 Mountain and N. of Ladrillo Station on Southern Pacific R. R. Colls., 

 Wm. Kew and R. E. Dickerson. 



CONCLUSIONS 



(1) The Tejon Eocene strata of San Diego County have yielded 

 a fauna of over 90 forms, many of which are common species in the 

 Tejon of Canada de las Uvas. 



(2) The same faunal stage is present in both localities i. e., the 

 Rimella simplex zone. 



(3) Orogenic movements in post-Eocene time have been far less 

 vigorous in the vicinity of San Diego than in central California, 

 although equivalent strata occur in both places. 



