420 University of California Publications in Geology LVol. 9 



consists of Spondylus carlosensis, Barbatia, sp., Meretrix, sp. and 

 Ostrea, sp. 



Beds about 300 feet above the base (Univ. of Cal. locality 458) 

 yielded an excellent fauna. This fauna, however, does not differ 

 essentially from that of the beds higher in the section. The faunas 

 from several other localities which are listed below do not differ mate- 

 rially from one another but all appear to represent one phase. This 

 faunal unity is in consonance with the sedimentary record as Ander- 

 son 66 described it : " The beds throughout possess a marked similarity 

 and give every appearance of representing a period of continuous 

 deposition in one basin. They are therefore to be regarded as making 

 up a formation, and not a larger division of the geologic column." 

 The writer is in complete agreement with Anderson's views as ex- 

 pressed here in relation to the type Tejon. However, beds both higher 

 and lower than the Eocene of Canada de las Uvas occur in other parts 

 of the state, notably in the vicinity of Mount Diablo, along Cantua 

 Creek, Coalinga Quadrangle and at the Marysville Buttes. Owing to 

 these facts the expression ''Tejon group" is fully warranted upon 

 both stratigraphic and faunal grounds. 



The fauna of the type Te-jon corresponds to the Rimella simplex 

 zone of the Mount Diablo region. 



06 Anderson, Robert. Preliminary Report on the Geology and Possible 

 Oil Resources of the South End of the San Joaquin Valley, Cal., Bull. 

 471, U. S. Geol. Surv., p. 118, 1912. 



List of Species From Type Locality of Tejon 



(Gabb) 

 Cardium brewerii Gabb 

 Cardium cooperii Gabb 

 Cardium, cf. olequahensis Weaver 

 Corbula hornii Gabb 

 Corbula parilis Gabb 

 Corbula harrisi, n. sp. 

 Corbula uvasana, n. sp. 



Nomland 

 Schizaster lecontei Merriam 

 Acila gabbiana, n. sp. 

 Area hornii Gabb 

 Avicula pellucida Gabb 

 Barbatia morsei Gabb 

 Crassatellites uvasana Gabb 

 Crassatellites grandis Gabb 

 Crassatellites mathewsonii 



Turbinolia, sp. 

 Dendrophyllia tejonensis 



Dosinia elevata Gabb 

 Glycimeris sagittatus (Gabb) 

 Glycimeris fresnoensis, n. sp. 

 Glycimeris eocenicus (Weaver) 

 Glycimeris ruckmani, n. sp. 

 Leda gabbi Conrad 

 Leda uvasana Dickerson 

 Lucina cumulata Gabb 

 Lucina, cf. cretacea 

 Lucina (Myrtaea) taffana, n. sp. 

 Lucina gyrata (Gabb) 

 Lucina nasuta Gabb 

 Macrocallista andersoni Dickerson 

 Macrocallista conradiana (Gabb) 

 Marcia quadrata (Gabb) 

 Meretrix hornii Gabb 

 Meretrix ovalis Gabb 

 Meretrix tejonensis Dickerson 

 Meretrix uvasana Conrad 



