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LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

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156 lower chetaceous deposits ijf california and oregon<br />

Neumayr and TJhlig. The species IB represented in the collections of the California<br />

Academy of Sciences by a well-preserved fragment and & partial mold of the same,<br />

from which the figures were made. The holotype (Calif. Acad. Sci. type Coll.) has<br />

the following dimensions; greatest diameter, 75 mm.; width of umbilicus, 33 mm.;<br />

height of whorl, 25 mm.; width of whorl, 36 mm,; umbilical ratio, 0.44:1.<br />

This example was found at Locality 113 (Calif. Acad. Sci.) and was presented to<br />

the California Academy of Sciences with many other fossils by Dr. E. J. Broad of San<br />

Francisco, for whom the Species is named in recognition of this courtesy and of his<br />

interest in the work of the Academy of Sciences.<br />

A small fragmentary example of this genus, possibly representing this species, was<br />

found on McCarthy Creek, Tehama County, in "Zone X,' J with Neotsomites jenkensi.<br />

nov.<br />

SubastieHa Spath, 1921, p. 32<br />

Genotype, "Olcottephamii" (Asii'ma) sulcosua Favlow<br />

Subosn'iiria cAancfcfata Anderson, n. sp.<br />

(P1»l» &KUTH 4, 3}<br />

AIH'FWA cf. mliffi (d'Orbigny) <strong>AND</strong>EILSON, Geol. See. Am., Bull., vol. 44, 1933, p.<br />

1250; "Zone N," McCarthy Creek, Tehama County,<br />

Shell small, spheroidal, coronate, with deep and narrow umbilicus; section of<br />

whorl reniform, broader than high; umbilical walls abrupt, surmounted by small,<br />

elongated bullae, scarcely tuberculate; sides densely coatate, the costae arising<br />

on the umbilical wall, inclining forward, forming the umbilical bullae; smaller<br />

costae branching from these in groups of two or three, crossing the periphery without<br />

interruption. The holotype (Calif. Acad. Sci. type Coil.) was obtained at Locality<br />

113 (Calif. Acad. Sci.) in the Hamlin-Broad tone, where it was associated with<br />

Polyptychic* lecontei, Simbirskites broodi, and many other Paskenta species. The<br />

same species was found on McCarthy Creek, Tehama County, associated with Ntoeomitc*<br />

jenkinei, Thurmannia pask&iloe, Aucella nuciformii Pavlow, and other<br />

species of upper-middle Valanginian age.<br />

Neosraapedilet Spath, 1924<br />

Neocraapeditet agutla Anderson, n. sp.<br />

(Plate3S, Spans 1, 2, 3; pkl« SS, ftgun 4)<br />

Shell large, discoidal, flattened on the sides, though little compressed; rather<br />

broadly umbilicate, the umbilicus having abrupt walls, rounded on tbe border; sides<br />

closely costate with branching ribs; umbilical ribs arising on the walls, or at the<br />

suture, inclining slightly backward, but on the umbilical border describing a broad<br />

curve, above which they divide a little below the middle of the side, inclining then<br />

strongly forward; above the middle of the side re-dividing into two or three smaller<br />

costae, all crossing the periphery without interruption; suture lines not fully known;<br />

the relatively large first lateral lobe resembling that of NeocTatpediles tenuis (von<br />

Koenen). The holotype (Calif. Acad, Sci, type Coll.) consists of a fragment, about<br />

a quarter of a whorl, and a mold of the same specimen, including a large part of the<br />

umbilicus. This, and two largcr^&nd mors complete, but somewhat crushed, examplea<br />

were found on Eagle Creek, near Ono, Shasta County, in the Ono zone in the<br />

basal beds of the Horsetown group. The larger example measures 8 inches in diameter<br />

and has a maximum thickness of 1.75 inches. The spccies appears to be closely

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