FAUNAL RELATIONSHIPS OF THE MEGANOS GROUP 163 
much smaller percentage of species common to the Siphonalia 
sutterensis zone and the typical Tejon than was supposed. As 
might be expected, there are a few species common to both faunas, 
but taken as a whole they are distinct. This will be still more 
evident when the entire fauna of the Meganos is described. 
While the number of species common to the Eocene of the 
Marysville Buttes and Table Mountain, and to any one section 
of the Meganos of the Coast ranges mentioned in this paper 
(species not found in the typical Tejon), is not very large, yet 
they are forms such as would not be expected to have a very 
long range. A number of species from the Siphonalia sutterensis 
zone have been found in the Meganos of the Ventura County 
section, which have not been found in the Meganos of the Mount 
Diablo region, and vice versa. Taken as a whole, as indicated 
in the list, pages 158-59, there is a fairly large number of distinctive 
species common to the general Meganos of the Coast ranges 
and the beds of the Siphonalia sutterensis zone found in the Marys- 
ville Buttes and in the vicinity of Oroville. Among these are 
several corals together with a fairly large number of highly orna- 
mented gastropoda and pelecypoda, the type species which are 
generally regarded as good horizon markers. 
GENERAL CORRELATION 
The consensus of opinion of those who are familiar with the 
’ Tejon fauna of California has been that it represents about the 
same stage of deposition as the Claiborne of the Gulf province, 
which in turn is correlated with the Lutetean subdivision of the 
Eocene of Europe. T. A. Conrad’ as early as 1855 reported 
certain described Eocene species he had found in a bowlder ob- 
tained from near Fort Tejon, California, sent to him by W. P. 
Blake. 
Later G. D. Harris in his paper entitled “Correlation of Tejon 
Deposits with Eocene Stages of Gulf Slope’” correlated the Tejon 
with the lower Claiborne on the basis of the identity of highly 
tT. A. Conrad, “Paleontology,” Pac. R.R. Rept. App. to Preliminary Geol. Rept. 
of W. P. Blake (1855), pp. 5-20. 
2G. D. Harris, Science, Vol. XXII (Aug. 12, 1893), p. 07. 
