. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Pleurotomaria modesta, Keyes. Proc. Acad. Nat. Sc. ^^ Phila., 1888, page 238, plate 12, 'figs. 2 a, 5, a beautiful little whorl- shell from the lately discovered very fossiliferousZ<9i^e^^ coal No. 3, (= No. 7 of 111.) pyritous roof shale, containing at least 35 genera and 60 species, at Des Moines, Iowa, just over the St. Louis limestone (X//being absent.) Possibly identical with P, depressa^ Oox, a name however pre-occupied by Phillips in 1836


. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Pleurotomaria modesta, Keyes. Proc. Acad. Nat. Sc. ^^ Phila., 1888, page 238, plate 12, 'figs. 2 a, 5, a beautiful little whorl- shell from the lately discovered very fossiliferousZ<9i^e^^ coal No. 3, (= No. 7 of 111.) pyritous roof shale, containing at least 35 genera and 60 species, at Des Moines, Iowa, just over the St. Louis limestone (X//being absent.) Possibly identical with P, depressa^ Oox, a name however pre-occupied by Phillips in 1836 for another shell.—X//7. Pleurotomaria nodulostriata. Hall, Trans. Alb. Inst., Xl 5 Vol. 4, 1856. Whitfield, Bull. 3, xlm. Mus. Nat Hist. N. Y., plate 9, fig. 5.— Collett's Indiana Et. 1882, page 352, plate 32, fig. 5, magniiied four times ; medium specimen. To be known by its depressed conical spire, almost cut off (truncat- ed); granulated surface produced by cross stride. Spergen Hill, etc., Iniiana. Subcarhoniferous, XI, Pleurotomaria pervetusta. See Euomphalus pervetustus, Pleurotomaria ? nucleolata, Hall, Pal. N. Y. Vol. 1,1847, p. 42, plate 10, fig. 6 a, nat size ; 6 S, en- larged ; the last whorl composing almost the entire shell; a small distinct species observed P , ,,. by Hall at no other horizon but that of the upper part of the Bird'^s-eye limestone forma- tion^ at Watertown, Jefferson Co., N. Y.— In Pennsylvania found by H. D. Rogers (Geol. Pa., 1858, Vol. 2, page 817.)— Trenton [.^] IIc. Pleurotomaria occidens, Hall, 20th Regents Rpt. N. Y. 1867, Niagara. Pal. Ohio, ^ ..-^J-\^ Vol. 2,1875, page 142, plate "*^^^ §^ gg^ 2, side view of aper- ture and volutions, streaked with strong revolving lines, or ridges, and apparently also with cross lines; shell flatter in Ohio than in States further west, probably because of greater weight of Coal mea- <?^z 6 (,. Please note that these images are extracted from scanned page images that may have been


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