. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 833 Ptycho. Ptychoparia orestes. var. thersites. {Conocephalites thersites^ Hartt, Acad. Geol. p. 653.) Wal- cott. Bulletin No. 10, U. S. G. S. page 40, plate 45, fig. 2, type of C. thersytes^ enlarged twiee. Lower Cambrian {St. John) formation^ New Brunswick. Z. C. Ptychoparia ouangondiana and variety aurora (Cono-. %m0\Jt. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 833 Ptycho. Ptychoparia orestes. var. thersites. {Conocephalites thersites^ Hartt, Acad. Geol. p. 653.) Wal- cott. Bulletin No. 10, U. S. G. S. page 40, plate 45, fig. 2, type of C. thersytes^ enlarged twiee. Lower Cambrian {St. John) formation^ New Brunswick. Z. C. Ptychoparia ouangondiana and variety aurora (Cono-. %m0\Jt. 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
