. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. i'i;:: Found in the EncrinaJ limestone, at Section ."> (several fragments, probably of this species, though the characters are very much obliterated). (JONOCABDIUM CRASSIFRONS. ( (' () 11 r ;l (1 . ) (Fig. 182A.) (Pleurorhynchus crassifrons. Conrad: Journ. Acad. Nat. Sci. Phil., Vol. YIIL, Pt. I., p. 252, PL XIII., 1839.) Distinguishing Characters.— Small size; short valves; broad truncated anterior end; narrow posterior (winged) end; elevated distant beaks; five or six convex r
. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. i'i;:: Found in the EncrinaJ limestone, at Section ."> (several fragments, probably of this species, though the characters are very much obliterated). (JONOCABDIUM CRASSIFRONS. ( (' () 11 r ;l (1 . ) (Fig. 182A.) (Pleurorhynchus crassifrons. Conrad: Journ. Acad. Nat. Sci. Phil., Vol. YIIL, Pt. I., p. 252, PL XIII., 1839.) Distinguishing Characters.— Small size; short valves; broad truncated anterior end; narrow posterior (winged) end; elevated distant beaks; five or six convex radiating lines on each valve. Fig. 182A. Conocar- Found in the Hamilton group of Eighteen SSiSaSSS^J^ Mile Creek. ( York.) gL*ioSSSSSBS" *'"'". Genus LUNULICARDIUM. Munster. [Ety. : Lunula, a little moon; cardium, a genus.] (1840: Beitrage zur Petrefactenkunde, 3tes Heft., s. 69.) Shells with equal inequilateral valves, transversely sub- elliptical, sub-circular, or trigonal in outline. From the terminal beaks a sharp angular ridge runs downward, delimiting a flattened, heart-shaped anterior area or lunule, which has a central byssal opening. Surface marked by con- centric stria?, and often by strong radii. LUNULICARDIUM FRAGILE. Hall. (Fig. 183.) (Pal. N. Y., Vol. Y, Pt. I., p. 434, PL LXXI.) Distinguishing Characters.— Small size; fragile condition; smooth surface, which shows only fine concentric lines, and rarely very fine radiating lines; lunule with a thin expansion. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Buffalo Society of Natural Sciences. Buffalo, N. Y. : The Society
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