430 THE JOURNAL OF GEOLOGY. 
following Tejon forms: Crassatella grandis, Gabb; Meretrix hornt, 
Gabb; Cardium sp.; Fusus martinez, Gabb; Dentalum coopert. 
The Sespe in its upper course has eroded a broad longitudinal 
valley in the center of this formation. North of the stream on 
the southern slope of Pine Mountain is a body of heavy-bedded 
light yellow sandstone, dipping north generally at a small angle. 
Where the Matillija trail crosses it there were found numerous 
specimens of Astrodapsis whitneyt, Remond; fragments of Ostrea 
titan, Con., and Pecten discus, Con. Four miles down the canon Dr. 
Bowers’ has collected twenty-five Miocene species from the same 
sandstone. Although the actual contact was not observed, there 
can be no doubt as to the unconformity. The Tejon and possibly 
Chico strata below being steeply inclined and much broken, espec- 
ially south of the Sespe, while the Miocene sandstone dips very 
regularly to the north into the Tejon, forming the summit and 
north slope of Pine Mountain. Near the mouth of Santa Barbara 
cafion there is a series of sandstones, gypsum-bearing clays, and 
limestones resting unconformably against dark thin-bedded sand- 
stones and shales of undoubted Cretaceous age, although no fos- 
sils were found at this point. South of the Perkin’s Ranch on 
the slopes of the Cuyamas Range are numerous areas of light 
yellow heavy-bedded sandstones resting on or against dark sand- 
stones and shales. Specimens of a Miocene Pecten and Ostrea 
occur in the upper beds at different points. The following Chico 
fossils were found in the deep canon of the Sisquoc, between the 
Cuyamas Range and the San Rafael Mountains: /noceramus, sp. ; 
Meekia sella, Gabb; Pectunculus veatchi, Gabb; Cinulia obliqua, 
Gabb; Baculites chicoensis, Trask; Cylichna costata, Gabb; Tellina 
ashburnert, Gabb; Dentalium stramineum, Gabb, and an unknown 
crustacean. The strata consisting of dark shales and thin-bedded 
sandstones are steeply tilted and much broken. Stratigraphically 
they seem to belong with the lowest beds in Santa Barbara Cafion. 
The uppermost beds at the head of the latter cafion occupy the 
highest position in a great synclinal fold, appearing to be a con- 
tinuation of the Tejon on Pine Mountain. South of the Sisquoc, 
™Report Cal. State Mining Bureau, p. 763. 
