Bulletins of American paleontology . 210 Bulletin 249 noeth-carolina geological suevet. 30^ FAMILY niOLx^DIDAE. These species of Pliolas have been found in the miocene ofthis, viz: P, Costata, P. OI)U>ngata, and P. are rarely if ever entire, hut their fragments are notuncommon, KAillLY CAKUIDAE.—CAKDIUM MAGNUM.—CAKDIUM VEMTRICOSUM, Sliell large, inflated, obliquely cordate, radiately ribbed,ribs flattened, anterior ones crenulated. This magnificent fossil is found occasionally in the is quite common in the pliocene, and is now very abun-dant upon the coast, near B
Bulletins of American paleontology . 210 Bulletin 249 noeth-carolina geological suevet. 30^ FAMILY niOLx^DIDAE. These species of Pliolas have been found in the miocene ofthis, viz: P, Costata, P. OI)U>ngata, and P. are rarely if ever entire, hut their fragments are notuncommon, KAillLY CAKUIDAE.—CAKDIUM MAGNUM.—CAKDIUM VEMTRICOSUM, Sliell large, inflated, obliquely cordate, radiately ribbed,ribs flattened, anterior ones crenulated. This magnificent fossil is found occasionally in the is quite common in the pliocene, and is now very abun-dant upon the coast, near Beaufort. CAUIHUM MUPJCATUM.—(Fig. 2d2--S.)The specimen given in the figure resembles the muricatunu. The families cardidae and cardltidae should have preceded veneiidae. North Carolina Geol. Sur.: Emmons302 n0rth-caj20ltna geological survey. 211 but it is more elongated, and its crenulations appear to have obtained only one specimen; and hence, cannot speakof the permanence of its cliaracters. It occurs in WalkersBluff, on the Cape Fear. Cardium snblineatum is a common fossil of the Cape Fearand Neuse marl beds. FAMILY 23-i. ^, CARDITA ARATA.—(Fig. 234.) Shell rather thick, oblong,and ornamented with fifteen orsixteen elevated scaly ribs; an-terior side very short; poste-rior margin oblique; innermarcrin crenate. C. PERPLANA.—(Fig. 235.)Shell small, rather thick, triangular, inequilateral, radiatelyribbed, striated: posterior side produced, anterior Fig. 23C.
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