. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. i^n Platyceras acutirostre. (Capulus acutirostris^ Hall,Trans. Alb. Inst. Vol. 4, 1856, Iowa Rt. 1859, pi. 23, fig. 14. Whitfield, Bull. 3, Amer. Mus. 1882, pi. 8, figs. 13,15,) Collett's Indiana Rt. L,,^§ 1882, p. 370, pi. 31, figs. 13,15. f:^ .... -^j Subcarboniferous forma- tions at Spergen Hill, etc. In- diana.—Recognized, doubtfully, by Heilprin among the an- thracite black shale fossils of the Wilkes-Barre neighborhood, owned by the Wyoming Hist. Soc. S
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. i^n Platyceras acutirostre. (Capulus acutirostris^ Hall,Trans. Alb. Inst. Vol. 4, 1856, Iowa Rt. 1859, pi. 23, fig. 14. Whitfield, Bull. 3, Amer. Mus. 1882, pi. 8, figs. 13,15,) Collett's Indiana Rt. L,,^§ 1882, p. 370, pi. 31, figs. 13,15. f:^ .... -^j Subcarboniferous forma- tions at Spergen Hill, etc. In- diana.—Recognized, doubtfully, by Heilprin among the an- thracite black shale fossils of the Wilkes-Barre neighborhood, owned by the Wyoming Hist. Soc. See Geol. Sur. Pa. An. Rt. 1885, p. 451.—XIII. Platyceras attenuatum, (? P. dumosum^ Conrad.) Hall, VIM tf I ^^>.. 13th Re- gents' Rt. 1859; 15th Re p o r t, 1862, p. 19. — Meek 's Zh f. TaL Ohio . Vol X, /y:xx. species, with same name, was described in Proc. Acad. Nat. Sci. Phila. 1871, p. 75. Also in Pal. Ohio, Vol. 1, 1873, page 212, plate 20, fig. 2ci^ internal cast, showing little nodes which occupied depres- sions on the inner surface of shell corresponding [this however is Meek's species; different from Hall's] to the cases of spines on its unknown outside surface ;^2b, another cast. A peculiarity of the shell, the twisting-^f the apex nearly at right angles side- wise, distinguishes it from P, domosum. It resembles the non-spiny P. reilexum of the Oriskany sandstone, Columbus, O. Corniferous limestone. VIII a,—In Pennsylvania collec- tions. Cat. 000, Claypole's spec. 5-75, 94-45,198-10-12. Platyceras bisulcatum. Hall, Palaeontology of New York, Vol. 3, 1859, p. 310, fig. 4, from the Loiuer^Helderherg formation in New York.— VL [In Pennsylvania, C. E. Hall names it in his MS. report of col- p lections, Dec. 30,1876, from Marcellus and Hamilton strata.— Vlllh. 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 res
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