. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Retz. 864 page 302, plate 25, figs. 13-17, dorsal valves, at various ages; 18, profile of 14; 19, ventral valve showing mesial groove; 20, front view of 14; 21, ventral, small, long, mature ? valve with finer plications. Niagara limestone. Vh. Retzia granulifera. See Trematospira granulifera. Illh. Retzia mormonii. {TerehTatula mormonii^ Marcou, Geol. N. America, 1858, p 51. Retzia punctilifera, Shumard, Trans. St. Louis Acad. Sci. 1858, Vol. 1, p. 220.) Coll
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Retz. 864 page 302, plate 25, figs. 13-17, dorsal valves, at various ages; 18, profile of 14; 19, ventral valve showing mesial groove; 20, front view of 14; 21, ventral, small, long, mature ? valve with finer plications. Niagara limestone. Vh. Retzia granulifera. See Trematospira granulifera. Illh. Retzia mormonii. {TerehTatula mormonii^ Marcou, Geol. N. America, 1858, p 51. Retzia punctilifera, Shumard, Trans. St. Louis Acad. Sci. 1858, Vol. 1, p. 220.) Collett's Indiana Rt. 1883, page 136, plate 35, figs. 10, 11, 12, enlarged one quarter, belly, back and side views. Widely distributed and easily identified in the Coal Measures. X///.—Note. The iigiire will he given in the Appendix. Retzia multistriata, Billings. Geology of Canada, 1863. 458 page 958, fig. 458, surface of the dorsal valve. Lower Helderberg forrrthtion, VI-. Retzia punctulifera. See R. mormonii. XIII. Retzia verneuilliana. See Eumetria vern. XL Rhabdoearpon acuminatum, Newberry. Pal. Ohio, Vol. 1, 6. MILd>. 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
