LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

EXPLANATION OF PLATES 237
PLATE 12.-—CRETACEOUS FOSSILS FROM CALIFORNIA
(1, 2) Pkylloceras occidentals nov. (I) Holotype. Greatest diameter, 46 mm.;
thickness of whorl, 23.5 mm. Xear Barr jsone, middle of Horsetown group; Loc. 1347
(C. A. S.), east of Mitchell Creek, 5 miles south of Ono, Shasta County. (2) Paratype.
Fragment showing only outer portion of whorl, without umbilical pit. Ono
zone, lower part of Horaetown group, near Ono, p. 139.
(3) Phylleccras sexlotii nov. Holotype, Greatest diameter, 27 mm.; thickness
of whorl, 14 mm. Mitchell zone, lower part of Horsetown group; near Jordan gate,
5 miles south of Ono, Shasta County, p. 140.
(4, 5) Phylloccraa iheresae nov. (4) Holotype. Greatest diameter, 63 mm..;
thickness of whorl, 32 mm, Perrin zone, upper part of Horsetown group; LOB, 1068
(C. A. SO, east branch of Hulen Creek, Shasta County. (5) Paratypo, Greatest
diameter, 30 ram,; Perrin zone; Loc. 152 (C. A, S.), east branch of Huleu Creak,
Shaata County, p. 141.
(6) Phylloxeras skastalense Anderson", Tepotype, Greatest diameter, 25 mm.
Loc. 1344 (C, A, S.), old Horsetown, upper part of Horseto-wn group, Shaata County,
p. 141.
(7) Phyiloccras calijornicum nov. Holotype, Large fragment of whorl, much
reduced. Greatest diameter (est,), 303 mm.; Neptune zone, upper part of Hor.setown
group; Loc. 1669 (C. A, S.), east branch of Hulen Creek, Shaata County, p, 143.
(3, 0) Pkylloceras cf. oregoneme nov. (3) Example from Ono zone, lower beds of
Horsetown group; Eagle Creek, near Ono, Shaata County. Natural size. p. 144;
(0) Example from Ono zone, Eagle Creek, near Ono, Shasta County, p„ 114.