LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

2 loweb. chetaceous deposits in california and oregon
PI*A.TE 41.—CRETACEOUS Foes-ITS FROM CALIFORNIA
(1, 2) Putosia buenaMnlura nov. Holotypc. (1) Inner coil, showing character
of ribbing at maturity. (2) Body chamber, detached, showing ribbing in aerial stage
of growth. Greatest diameter, including body-chamber, ICO mm.; diameter exclusive
of detached portion, 105 mm.; thickness of whorl, 41 mm. Buenaventura zone,
upper part of Hometown Group; near Loc- 1-5W-A (C, A. S,)> west branch of Hulen
Creek, Shasta County, p. 185.
(3-5) Acanth&plitea spalhi nov. (3) Holotypc. Greatest diameter, 70 mm.;
thickness of whorl, 26 mm, (4) Paratype, Greatest diameter, 32 mm,; thickness
of whorl, 15 mm., showing spine-like processes of the younger whorls near whorl
suture. (5) An example of intermediate sua. Buenaventura zone, upper part of
Horeetown Group; Loc, 13+6-A (C, A. west branch of Kulcn Creek, Shasta
County, p. 173.