480 University of California Publications in Geology [Vol. 9 



(3) The Oligocene in the vicinity of Walnut Creek rests with 

 apparent unconformity upon the Tejon. 



(4) The lone formation of the Sierra Nevada is the uppermost 

 phase of the Tejon group. 



(5) The deep gravels, bench gravels, the lower rhyolitic tuffs 

 and interrhyolitic stream gravels of the Sierra Nevada are the land 

 and stream-laid equivalents of the marine lone Eocene, the upper- 

 most member of the Tejon group. 



(6) Four faunal zones are recognized in the Tejon group, a 

 lowermost, the Turbinolia zone, then the Bimella simplex zone, 

 Balonophyllia zone and the Siphonalia sutterensis zone. 



(7) The fauna of the Tejon group contains about 300 species. 



(8) Only 25 species range downward into the underlying 

 Martinez Eocene and but 3 or 4 into the overlying Oligocene. 



(9) The Tejon group is apparently the correlative of the Mid- 

 way (in part, at least), Wilcox (Lignitic) and Claiborne, Eocene 

 formations of the Gulf Coast Province. 



