. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 1132.—UampaacauthuH typus. Side view of a Bplne maguine • ~ • tlou spine maguined 2 dlam., and transverse sec- Sur. III., vol. 6, p. 474, Keokuk Gr. squamosus, St. John & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 473, St. Louis Gr. typus, St. John & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 472, St. Louis Gr. Gisacantiius, St. Jonn & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 440. [Ety. geison, a b
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 1132.—UampaacauthuH typus. Side view of a Bplne maguine • ~ • tlou spine maguined 2 dlam., and transverse sec- Sur. III., vol. 6, p. 474, Keokuk Gr. squamosus, St. John & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 473, St. Louis Gr. typus, St. John & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 472, St. Louis Gr. Gisacantiius, St. Jonn & Worthen, 1876, Geo. Sur. 111., vol. 6, p. 440. [Ety. geison, a border; akantha, a spine.] Spine curved posteriorly, anterior angle a simple raised keel; lateral faces bear- ing longitudinal rows of tubercles; pos- terior face longitudinally keeled. Type G. stellatus. bullatus, St. John & Worthen, 1876, Geo. Sur. III., vol. 6, p. 441, Kaskaskia Gr. stellatus, St. John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 440, St. Louis Fio. 1138.—Qlymmatacanthus Irlshl. Fragment of Hplne. Glymmatacanthus, St. John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 446. [Ety. flyvimatos, engraved; akantha, spine.] ^in ray vertically elongated, posteriorly arched, laterally compressed; lateral faces covered with stellate or striated tubercles. Type G. irishi. sur les Poissons Fossiles, t. 1, p. 87 [Ety. gyros, a circle; akan- tha, spine.] Fin spines ver^ large, gradually ta- pering to the apex, and slightly arched back- ward; inserted base small, rapidly tapering; posterior margin feebly armed with two rows of small denticles; surface of the sides covered with very oblique ridges, which meet at an angle on the anterior face. Type G. formosus. all en i, Newberry, 1873, Ohio Pal., vol. 1, p. 331, Cuyahoga shale. compress us, Newberry, 1873, Ohio Pal., vol. 1, p. 230, Cuyahoga shale. cordatus, St. John & Wor- then, 1883, Geo. Sur. 111., vol. 7, p. 251, Keokuk Gr. duplieatup, Dawson, 1868, Acad. Geol., p. 210, Coal Meas. maguificus,
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
