. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. NXVoljy Jb. ISO 180, plate 26, figs. 9 to 15. Characterized by small ribs. The dorsal valves, interior surface alone known, are deeply con- caved. Inner surface strongly papillose-striate and shows con- centric striae. Species somewhat like P, dumosa^ of the Ham- ilton rocks. Dorsal valve like P. striatula. but can be distin- guished by its numerous minute pustules inside. Many places in New York in Chemung formation,—In Pennsylvania col- lected by Carll &
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. NXVoljy Jb. ISO 180, plate 26, figs. 9 to 15. Characterized by small ribs. The dorsal valves, interior surface alone known, are deeply con- caved. Inner surface strongly papillose-striate and shows con- centric striae. Species somewhat like P, dumosa^ of the Ham- ilton rocks. Dorsal valve like P. striatula. but can be distin- guished by its numerous minute pustules inside. Many places in New York in Chemung formation,—In Pennsylvania col- lected by Carll & Randall at Warren (C. E. Hall's MS. Rt. 1576), from Upper Chemung strata. VIIIg. Productella exanthemata (Productus exanthematus^ Hall. lOthRe- gents' it e port 1857). Ilamil' V0/.4. plates2S,2l> ^^.^ ^p. parently covered with pustulous eruptions.—Hall. Pal. N. Y. Vol. 4, 1867, page 163, plate 23, figs. 45, 46, interiors of dorsal valves, natural size; plate 25, figs. 12, 13, interiors of dorsal valves; differing all from interiors ot P, shumardiana; and from similar shells from the Corniferous ; but all may turn out to be varieties of one species. From Hamilton heds on Seneca. 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
