106 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47TH SER. 
beds with those of the Mt. Diablo Range, and with others 
throughout the area of the Temblor basin. 
Mt. Diablo Range Kern River Area 
Tulare Group Not Recognized. 
Kern River Group 
: Gray water-sands; green and 
Etchegoin Group brown sands, clays, etc.; sands 
carrying oil, oil-measures. 
Santa Margarita Group 
Unconformity, or beds not recog- 
ized. 
Monterey Group as 
Temblor Group 
Zone C., clays, ashy beds, and 
sands Le mee fos 
Zone B, gravels, clays, sands 
Temblor Group with eure focal diatom 
shales, bituminous shales, etc., 
Zone A, conglomerate, ashy 
beds, sands with marine fossils. 
In his recently published paper, The Geologic Record of 
California, Dr. J. P. Smith* suggests without comment a tab- 
ulated correlation of the Neocene deposits occurring in and 
about the borders of the Temblor Basin. While the plan 
therein proposed is not in entire harmony with the conclusions 
of this paper, it fairly represents the trend of opinion, and 
therefore, by his courtesy, is reprinted here with slight neces- 
sary alterations, the terms in parentheses being interpolated. 
THE TEMBLOR GROUP? 
From an inspection of the fauna of Zone A described in the 
preceding pages, there can be but little doubt as to its identity 
with the lowermost beds occurring at Temblor and at other 
1 Jour. Geol., v. 18, No. 3, pp. 216-227. 
2Dr. Arnold and others have not hesitated to apply the term “Vaqueros” to the 
Lower Miocene beds of the Mt. Diablo range which have been previously described 
under the name Temblor. It should be remembered, however, that the name 
“Vaqueros” has not yet any well-founded claim upon scientific or technical usage 
aside from its introduction into the literature of the U. S. Geological Survey. It has 
not yet had either a faunal or a stratigraphic description that could logically entitle it 
to recognition, nor has any such description been claimed for it. Its use in the 
literature of the U. S. Geological Survey is without reference either to logic or to the 
rules of precedence, and has in fact only an arbitrary basis for its support. It is 
hoped that its use will be discontinued. 
