. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Ptycha. 830 sis). Owen Geol. Wise, 1852, pi. 1, %. 3, 12; pi. 1 A, fig. 4, 5; from Third Trilobite bed, near fork of Missiskah and Mis- sissippi rivers. Upper Cambrian ? 1. rtychaspis speciosus. Walcott. Potsdam Fauna, Sara- ,_ i 3 toga Co., N. Y., 1888, fig. 3. See Bull. U. S. G. S. p. 62. Genus confined exclusively to Upper Cam- i4 irian (Potsdam) forraation. To be looked for in Pennsylvania along the South Mountains and Ches^ Wat,lS?8 ^^^ North and Sout
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Ptycha. 830 sis). Owen Geol. Wise, 1852, pi. 1, %. 3, 12; pi. 1 A, fig. 4, 5; from Third Trilobite bed, near fork of Missiskah and Mis- sissippi rivers. Upper Cambrian ? 1. rtychaspis speciosus. Walcott. Potsdam Fauna, Sara- ,_ i 3 toga Co., N. Y., 1888, fig. 3. See Bull. U. S. G. S. p. 62. Genus confined exclusively to Upper Cam- i4 irian (Potsdam) forraation. To be looked for in Pennsylvania along the South Mountains and Ches^ Wat,lS?8 ^^^ North and South Hill ranges. /. Ptychophyllum versiforme. See P. knappi. VIII a, Ptycholepis marshii, Newberry. Monograph of Trias^ Ir \ pi. 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
