. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. I g Saratoga county, N. Y., 1880. ^*^ figs. 5 and 8. See Bull. 30, V. type; fig. la, enlarged twice, type of Hartt's C. formosus. Lower Cambrian {Saint John) formation. L. C. Ptychoparia rogersi. Walcott, Bulletin No. 10, U. S. G. ^2 w S. page 47, plate 7, fig. 2. Natural size, type ' specimen. (Species only known by central plate of head, and in two specimens, portions of thorax. Middle Cambrian {South Braintree) argillite, Hayward's quarry, Mass. M, (7. Pty
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. I g Saratoga county, N. Y., 1880. ^*^ figs. 5 and 8. See Bull. 30, V. type; fig. la, enlarged twice, type of Hartt's C. formosus. Lower Cambrian {Saint John) formation. L. C. Ptychoparia rogersi. Walcott, Bulletin No. 10, U. S. G. ^2 w S. page 47, plate 7, fig. 2. Natural size, type ' specimen. (Species only known by central plate of head, and in two specimens, portions of thorax. Middle Cambrian {South Braintree) argillite, Hayward's quarry, Mass. M, (7. Ptychoparia (A) saratogensis. Walcott, Potsdam Fauna, S. G. S. page 62. Upper Cam- brian {Potsdam) formation. To be sought in Pennsylvania along the South Mountain, and the Chester Valley N. and S. Hill ranges. /. Ptychoparia striata. Barrande; used by Walcott, in Bulle- plate 6, fig. 4. taken from Bar- rande, to discuss the genus. Lower Ca m - brian of Bohe« mia. Z. C,. 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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