LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

417 loweb. chetaceous deposits in california and oregon
PLATE S3,—CRETACEOUS FOSSILS FROM CALIFORNIA
(1, la) AcrottutkiamtntIo«£nJ!!« nov. Holotype. Length (incomplete), 147mm,;
dorso-vcntral diameter, 30 mm.; lateral diameter, 35 mm. Found 2.5 miles north
of Wiaalow bridge on Elk Creek, Glenn County. Boaal beds of Paakeota group,
(la) Top view by reflection, p. 230,
(2, 2a) Neocmnitea neocomienait (d'Orbigny). (2) Example found in Waltham
Creek Valley, southwest of Coalinga, Fresno County, in basjil conglomerates of
Paskenta group. Greatest diameter, 20 mm.; thickness of whorl, 0 mm. (2a)
Oblique peripheral view of same example, p. 196.
(3, 4) flennaaetfa cf. cratviplieata (Stanton). (3) Example found in near basal
bed of Pankenta group on McCarthy Creek. Enlarged. (1) Plaster cast made
from rock mold of same example. Natural size. p. 163.
(5) Ilolctdiacua tehantcmrns nov. Holotype. Much reduced. GrentcJitdiumotcr
(est.), 250 nun.; height of whorl, 75 mm.; thickness of whorl, 60 mm. Lower part of
Horsetown group; McCarthy Creek, Tehama County, p. 19L
(5, 6a) Acroteulhia macarihyensia nov. Holotype. (6) Ventral view; reduced.
(6a) Cross section of same. Basal beds of Paakenta group; McCarthy Creek,
Tehama County, p. 230.