. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Walcott. Fal. Foss. Vol. 1,1861. Geol. j^m Can. 1863, p. 284, ^ fig. 287, a^ ventral valve; 5, dorsal valve; c, interior of dorsal valve. Quebec group. {Wdlcoit) Lower Cambrian. L. C mf. Obolella circe. Walcott. Bull. No. 30, TJ. S. G. S. page h1 10 11^5 plate 10, fig. 3, inside ' of dorsal, and fig. 3 a^ in- side of ventral (?) valves. —See Billings, Can. Nat 1872, Vol. 6,' p. 219.— Georgian limesione, be- low Quebec. Z. C. Obolella crassa. Ford. (Orbicula o
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Walcott. Fal. Foss. Vol. 1,1861. Geol. j^m Can. 1863, p. 284, ^ fig. 287, a^ ventral valve; 5, dorsal valve; c, interior of dorsal valve. Quebec group. {Wdlcoit) Lower Cambrian. L. C mf. Obolella circe. Walcott. Bull. No. 30, TJ. S. G. S. page h1 10 11^5 plate 10, fig. 3, inside ' of dorsal, and fig. 3 a^ in- side of ventral (?) valves. —See Billings, Can. Nat 1872, Vol. 6,' p. 219.— Georgian limesione, be- low Quebec. Z. C. Obolella crassa. Ford. (Orbicula orassa.^ Hall, Pal. N. Y. Vol. 1, pi. 79, fig. 8^.— pl*IO Avicula desquamata^ Hall, Pal. N. Y. Vol. 1, pi. 80, fig. 3 a, b — Dieolomus crassa^ Hall, 23d An. Kt. N. Y. p. 246, pi. 13, figs. 6 to 9,— Obolella crassa^ Ford, Am. Jour. Sci. Vol. 2, p. 33, and Vol. 21, p. 131, figs. 1, 2.) Walcott, Bull. No. 30, U. S. G. S. page 114, plate 10, fig. 1, ventral valve, well-preserved inside surface, enlarged three times ; 1 a^ dorsal valve, outer surface ex- foliated, enlarged; 1 5, dorsal valve with outer surface pre- served, enlarged twice ;. 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
