. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Lingula crassa, Hall. Pal. N. Y. Vol. 1, 1847, Trenton. dc^Asa, .^. A'— Emmons, Amer. GeoL Vol. 1, pt. 2,1855, I'P'-^' p. 203, plate 8, figs. 8 a, 5, c, d; Shell 4 thick, etc.; but the marked difference of .%»At'- - M -^^ '- ^- breadth of the upper and lower scales is a rather common feature of many other species. Trenton lime- stone formation, to which it is confined.—IIc. Lingula cuneata, Conrad. Hall, page 48, figs. 6, 5; page 52, IV. fig. 30. (Rogers, Geo
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Lingula crassa, Hall. Pal. N. Y. Vol. 1, 1847, Trenton. dc^Asa, .^. A'— Emmons, Amer. GeoL Vol. 1, pt. 2,1855, I'P'-^' p. 203, plate 8, figs. 8 a, 5, c, d; Shell 4 thick, etc.; but the marked difference of .%»At'- - M -^^ '- ^- breadth of the upper and lower scales is a rather common feature of many other species. Trenton lime- stone formation, to which it is confined.—IIc. Lingula cuneata, Conrad. Hall, page 48, figs. 6, 5; page 52, IV. fig. 30. (Rogers, Geol. Pa., 1858, Yol. 2, page 822, no figure. Conrad, page 64) showing specimens with tails of sand formed by the current.—Medina^ IV. Lingula curta. Rogers, 1858, pages 818, 820, 821, fig. 604. Trenton formation. (Conrad, Journal Acad. Nat. "'IP^^I^ Sci., Philadelphia, 1842). Occasionally found in R^^^ft some of the Trenton beds of the Nittany valley. 6Q4rW^ (C. E. Hall and Ewing, T4. p. 424.)— 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
