STRATIGRAPHY OF SOUTHERN CALIFORNIA 133 
exposure of over one thousand feet of these soft sandstones, 
tilted at an angle of from 40 to 50 degrees toward the ocean. 
The fauna of these beds indicates their contemporanity with the 
upper San Pedro series, although the fauna near the bottom 
resembles more that of the lower San Pedro. A fauna of over 
sixty recognizable species was obtained from soft beds in the 
hills north of Barlow’s ranch, three miles east of Ventura, at an 
elevation of between seven and eight hundred feet. The strata 
from which these fossils came are inclined at an angle of over 40°, 
Fic. 6.— Section through Ventura, showing thickness of upper San Pedro series 
(Pleistocene) sediments, and a wave-cut terrace in the sediments. 
but are not contorted. The fauna is typically upper San Pedro, 
all of the sixty species (with the possible exception of one 
which is a variety of a living species) being living forms. 
Wave-formed terraces plane off the Pleistocene beds in the 
hills about a mile west of Ventura (see Plate 5). These ter- 
races represent a period of time later than the upper San Pedro, 
and are probably of late Pleistocene age. The accumulation of 
comparatively great thicknesses of sediments, their elevation to 
at least one thousand feet, and their configuration by wave-cut 
terraces shows how active the geologic agencies have been in 
the vicinity of Ventura during comparatively recent times. 
The region along the coast from Ventura to Santa Barbara is 
characterized by unfossiliferous, incoherent sands and gravels 
probably of Pleistocene age. Some of these sands and gravels 
are impregnated with asphaltum from the underlying Miocene 
shales. 
