. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. ISO Distwguishin^i^- Cli;irncters.— Sii 1 )-eircular or transversely sub-oval outline; nearly Hat or sli<ihtly-conca,ve pedicle valve, becoming- moderately convex near the beak; convex brachial valve; laroe mnscnlar area in the pedicle \j-\ Fig. 91. Rhipidomella vanuxemi. Enlargement of siirfari- siii;i'; .if interior of pedicle valve; dorsal, ventral, lateral and cardinal views of a large ami characteristic specimen ; interior of pedicle valve (from Hall J. A series of specimens shows considerab
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. ISO Distwguishin^i^- Cli;irncters.— Sii 1 )-eircular or transversely sub-oval outline; nearly Hat or sli<ihtly-conca,ve pedicle valve, becoming- moderately convex near the beak; convex brachial valve; laroe mnscnlar area in the pedicle \j-\ Fig. 91. Rhipidomella vanuxemi. Enlargement of siirfari- siii;i'; .if interior of pedicle valve; dorsal, ventral, lateral and cardinal views of a large ami characteristic specimen ; interior of pedicle valve (from Hall J. A series of specimens shows considerable variation in out- line, convexity, and character of muscular impressions between the young and adult. Found in the lower five feet of Moscow shales, at Sections 4 and 5; in the Encrinal limestone, at Section 5, etc.; in the Demissa bed and most of the beds below, at Sections 5, 0, 7, 8. It is rare in tlie Trilobite beds, at Section S. It is found in the shales down to the Pleurodictyum beds, on the Lake Shore and in Aveiy's Creek. Rhipidomella leucosia. Hall. (Fig. 92.) (Pal. N. Y., Vol. IV., p. 48, PL VII.). 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. : Buffalo Society of Natural Sciences
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