462 University of California Publications in Geology I Vol. 9 



County, as were described above. Whitney 80 describes the region 



further south as follows : 



From Kern River to Kings River, the metamorphic and granitic rocks 

 continue into the valley until covered by the recent detritus; but north 

 of Kings River, as far as the Stanislaus, there is a belt of low flat-topped 

 and dome-shaped hills of sandstone, rising one hundred to one hundred 

 and fifty feet above the level of the plain. A little north of the Merced 

 River, to the west of the road from Bear Valley to Stockton, a very hand- 

 some variety of sandstone was observed, forming low cliffs near the sum- 

 mit of a hill about one hundred and fifty feet high. This rock was a 

 fine-grained free-stone, elegantly ornamented with fine, waving and con- 

 centric lines and bands of a light rose-red color. For some kinds of archi- 

 tectural purposes, this stone would be a very desirable material. 



Such is the basis for the strand line to Kings River on the east- 

 ern side of San Joaquin Valley. 



Large collections from the type locality of the Tejon group made 

 by Mr. Bruce Martin of the California Academy of Sciences and by 

 the writer, do not contain the Siphonalia sutterensis fauna. Mr. 

 Clark Gester reports much thicker beds of Tejon north of the 

 Canada de las Uvas in the vicinity of San Emigdio Creek and certain 

 white shales in this vicinity may represent the equivalent of the 

 Siphonalia sutterensis zone. 



Mr. John Ruckman found Trochocyathus, cf. striatus (Gabb) and 

 Crassatellites (Astarte) mathewsonii (Gabb) in white shale beds imme- 

 diately overlying the white Tejon sandstone in the Coalinga district 

 near Domengine Creek. The coral is not definitely determinable, but 

 it resembles Trochocyathus striatus, a characteristic form of the 

 Tejon. The shales are somewhat ashy and they may represent 

 reworked rhyolitic ash of the Sierra Nevada. The upper portion of 

 these beds yielded Mr. Ruckman a small but characteristic fauna of 

 Oligocene age, San Lorenzo stage. The Tejon fauna below the white 

 shale is about the equivalent of the Balanophyllia zone, Mount Diablo 

 region, which is between that of the type Tejon and the Siphonalia 

 sutterensis fauna. No other localities in which the uppermost zone of 

 the Tejon is found are known in the Coast Ranges of California. Some 

 residuals may yet be found, but apparently the uppermost strata of 

 the Tejon were removed at least in large part during the great inter- 

 vals of erosion between the Eocene and Oligocene, and Oligocene and 

 Miocene. According to Fairbanks, 81 no Tejon was deposited within 



so Whitney, J. D., Geological Survey of California, Geology, vol. 1, p. 202, 

 1865. 



si Fairbanks, H. W., San Luis Folio, No. 101, U. S. Geological Survey, p. 3, 

 1904. 



