LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

CRETACEOUS SEDIMENTARY DIVISIONS 71
"Olcoitephanut (Asiitria)" damn Wbiteaves was described as coming from Skidagatc
Inlet (Graham Island ?). Stanton (1895) baa mentioned a closely related
specics found on the Cold fork of Cottonwood Creek, associated with other species,
all of which come within the limits of the Paskenta group-
More recently a considerable collection of Lower Cretaceous fossils,
obtained in the near vicinity of Village Bay, Graham Island, not far from
the Indian village of Skideg&te, waa collected by R. M. Kleinpell and
E. W. Galliher and donated by them to the California Academy of Sciences.
The locality is said to be 2 miles north of the village and was
given the field number 77 ia their report. Among the species collected
at this locality the following may be noted:
Lylecerat arganaularvm Anderson was described from middle Horaetown (lower
Aptian) bedu near Mitchell Creek, Shasta County, California. It is characteristic
of the Argonaut zone described in this paper.
Dnmoceraa voyi And era on was first found in middle Horsetown (lower Aptian)
beds on Alderson Creek, 2 miles south of Ono, Shasta County. Fiva well preserved
examples were obtained at Village Bay, Graham Island.
Aucella indigtnalia nov. was obtained at Locality 77, 2 miles north of Skidcgate
village; tan good specimens were collected, one of which ia figured (pi. S. fig. 10).
A similar species occurs in the Barr zone of the Horsetown group, about 0 miles
south of Ono, Shasta County.
Auctlla lerebratuMde* Lahilsen was obtained at Locality 77; one of the three
fairly well preserved examples collected is attached to a spocimon of Dttmoctrat voyi,
making a noteworthy association of specics. .A. ierebraiuloidea has been found in
the Horsetown group on McCarthy Creek, Tehama County, California.
The locality near Village Bay from which this collection came is within
the area mapped by MacKeneie as the Yakoun formation, thus indicating
a structural condition at this point that has escaped recognition.
From the foregoing no tea it will be seen that strata as old as middle
Horsetown (Bedoulian) occur on Graham Island, and, as indicated by one
species, even older bedB.
The group of strata represented by the foregoing list of species has not
been described, and little is known as to its character or stratigraphic
relations, nor has it been named. Its occurrence on Village Bay would
suggest the name Village formation, which may be correlated with either
the Barr zone or the Argonaut zone of the Horsetown group in the Cottonwood
district of California.
FAUNAL CONTRASTS IN THE SHASTA SERIES
General Statement,—As reflected in the fossil invertebrates now known
from the Shasta series, two distinct biotic areas are apparent in the Sacramento
embayment—that of the northern Cottonwood drainage, Shasta
County, and that crossed by Elder and McCarthy creeks, Tehama County.
In view of their situation on the same border of the embayment and the
short interval between them, these areas show some surprising faunal