. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Obol. 478 1 e, cast of inside of dorsal valve; 1 d, diagram of inside dorsal valve (by Ford); 1 ^, cast of inside of dorsal valve; 1 /*, dia- gram of inside ventral valve (drawn by Ford); a, cardinal; 5, central; d^ lateral mnscnlar scars; p^ pedicle groove.â Troy, N. Y.; Shodack Landing Quebec. Z, (7. Obolella gemma. Billings, 1872, Can. Nat. Vol. 6, p. 218, ^ o figure 5. ^'^â ^ ^ '^^-' pKlO Walcott, Bulletin No. 30, U. s. a S. page 116,plate 10, fig. 2, out
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Obol. 478 1 e, cast of inside of dorsal valve; 1 d, diagram of inside dorsal valve (by Ford); 1 ^, cast of inside of dorsal valve; 1 /*, dia- gram of inside ventral valve (drawn by Ford); a, cardinal; 5, central; d^ lateral mnscnlar scars; p^ pedicle groove.â Troy, N. Y.; Shodack Landing Quebec. Z, (7. Obolella gemma. Billings, 1872, Can. Nat. Vol. 6, p. 218, ^ o figure 5. ^'^â ^ ^ '^^-' pKlO Walcott, Bulletin No. 30, U. s. a S. page 116,plate 10, fig. 2, outside (weath- ered ) o f a ventral valve, en- larged ; fig. 2 «, another, enlarged six times; fig. 2 5, inside of another {a, cardinal; d^ lateral; <?, central muscular scars ; j9, foot groove); 2 {?, inside of another (difl'erences due largely to poor preserva- tion) ; 2 d^ inside of dorsal valve, poorly preserved; 2 c^ out- side of another. {All enlarged.) Below Quebec; and near Troy, N. Y. Lower Cambrian. L. C. Oholella lahradorica^ (Kutorgina labradorica), Billings Iphidea labradorica^ Billings. Pal. Foss. Vol. 1861.âGeol. Can. 1863, page 284, fig. 291, dorsal valve. Quebec group., called by Logan, here, Potsdam. L (Walcott has renamed the genus, and placed it in Lower Cambrian.) L. C. Obolella nitida, Ford, 1873, Amer. Jour. S. [3] Vol. 5, p. 2 213.âWalcott, Bulletin No. 30, U. S. G. S. page 118, plate XI, fig. 2, dorsal (?) valve, enlarged Hve times (drawing by Ford). Lower Cambrian xie^iY Troy,N. Y. (Walcott.) Z. **^-^;'''' iG^^ 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 Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for the Geological Survey
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
