. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Z5 Coal Measures.) Collett's In- diana of 1883, page 136, plate 35, figs. 6, 7, 8, belly, back and side views of a typical example, nat- ^291 uTol size; ^^. 9 back view of larger specimen to which are cttUched two under valves of Grani% modesta.—XIII—XVII. Widely known, the most common and characteristic species of the Coal Measures, rang- ing from base to summit, and into the Permian (Meek); from Virginia to the Rocky Mountains; common in Upper and Mid- dle,
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Z5 Coal Measures.) Collett's In- diana of 1883, page 136, plate 35, figs. 6, 7, 8, belly, back and side views of a typical example, nat- ^291 uTol size; ^^. 9 back view of larger specimen to which are cttUched two under valves of Grani% modesta.—XIII—XVII. Widely known, the most common and characteristic species of the Coal Measures, rang- ing from base to summit, and into the Permian (Meek); from Virginia to the Rocky Mountains; common in Upper and Mid- dle, rarer in Lower Coal Measures. Dawson's Acad. Geology. 1868, page 291, figs. 88 a, h and c^ showing the spiral gills, which give name to all the Spiriferidm. Occurs by millions in the Lower Carboniferous limestone of Nova Scotia.^—XL In Pennsylvania, abundant in Green Crinoidal limestone, middle of Barren Measures (Pittsburgh Series) and in the Black Crinoidal limestone, at Pittsburgh, and on the Cone- maugh. (Reports K, p. 80; L, p. 35.) At Morgantown, W. Va. in Deckert's creek shale under Mahoning sandstone, bot- tom of Barren Measures (L, p. 36.)—in Lawrence, Beaver and Butler Cos. in Ferriferous limestone (Q2, pp. 47, 106; Q3, p. 25; V, p. 147); also, in Conglomerate Xo. XII, over Scrub- grass coal in Mercer Upper and Lower limestone (QQ, dt3. 57,. 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
