292 B. L. CLARK THE MEGAXOS GROUP 



The Meganos beds of this section have a strike of approximately north 

 40° west, while those of the Tejon have a general strike of about north 

 70° west. Thus, in following the Meganos beds to the southeast they are 

 rapidly overlapped by those of the Tejon, disappearing entirely within a 

 short distance. 



FAUX A 



Up to the present time only a comparatively small fauna has been ob- 

 tained from the Meganos of this section. More detailed work will un- 

 doubtedly yield a larger fauna. Some of the species found are : 



Cardium brewet'ii Gabb, n. subsp. 



Glycimeris sp. 



PsammoUa, n. sp. ; also found on north side of Mount Diablo. 



Macrocallista, n. sp. ; also found on north side. 



Met'etrix, n. sp, ; also on north side of mountain. 



Amauropsis, n. sp. 



Rimella n. sp. 



Galleodea sutterensis Dickerson ; also found on north side. 



Mltra, n. sp. 



Scaphander, n. sp. ; also found on north side. 



Yenericardia, n. sp.? 



Other Occuerexces of Meganos 



general reference 



It is the writer's opinion that there are other localities in different 

 parts of California where beds are found which apparently belong to the 

 same general epoch of deposition as those of the Meganos. Two of the 

 better known localities will be discussed here. 



COALIXGA DISTRICT 



In the Eocene to the north of Coalinga there is a contact, which has 

 been discussed by several writers. The beds above this contact contains 

 a typical Tejon fauna — a fauna which contains a considerable number 

 of the highly ornamented molluscan species found in the Lower Tejon of 

 the Mount Diablo region and in the t3'pe section at the south end of the 

 San Joaquin Valley. One of the most common species found in the beds 

 below this contact is Turritella andersoni Dickerson. This species is so 

 abundant in these beds in this general area that they will be referred to 

 as the Turritella andersoni beds. In 1912 J. A. Taff^ described an uncon- 

 formity between the Turritella andersoni beds and the lower sandstones 



8 J. A. Taff : Pal. Soc. Am., 1912, p. 127. 



