. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 766 GASTROPODA. AST.—CYC. rugatiiKi, Syii. foi* Trybluliiim indiiiii- ense. gewicarinala, Syn. forOupinaropsis patel- liformirt. , Syn. for CnrinnropsiH pntel- lifoi'iiiiH. snht'dtiirxhi, Syn. forTryblidium validum. Abtramtes, Whiteaves, 1892, Ooiit. to Can. Pal., p. o23. [Ety. from the living genus Antra Until.] Shell conical, im- perforate, flattened at the base; per- iphery 8ubangular, fringed with
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 766 GASTROPODA. AST.—CYC. rugatiiKi, Syii. foi* Trybluliiim indiiiii- ense. gewicarinala, Syn. forOupinaropsis patel- liformirt. , Syn. for CnrinnropsiH pntel- lifoi'iiiiH. snht'dtiirxhi, Syn. forTryblidium validum. Abtramtes, Whiteaves, 1892, Ooiit. to Can. Pal., p. o23. [Ety. from the living genus Antra Until.] Shell conical, im- perforate, flattened at the base; per- iphery 8ubangular, fringed with a thin, regularly lobate or sinuate lat- eral expansion; columella encircled with a single narrow but prominent spiral fold, which is represented by a deep spiral groove in casts of the in- terior. Type A. fnuhriatiiH, described at the same place, from the Devonian. Bki-lerophon alternodosus is illustrated and described in Ohio Geol., vol. 7, p. 479. biliiii-atiiH, Ulrich, Syn. for B. Fig. 1411.—Bellerophon gorliyi, front and dorsal views. blairi. Miller and Gurley, 1896, Bull. No. 11, 111. St. Mu8. Nat. Hist., p. 21, Chouteau Gr. , Ulrich, Syn. for B. mohri. cincinnatiensis. Miller and Faber, 1894, Jour. Cin. Sec. Nat. Hist., vol. 17, p. 29, Hud. Riv. Gr. clausus, Ulrich, Syn. for B. troosti. exiguus, Foerste, 1896, Ohio Geol., vol. 7, p. 548, Niagara Gr. globularis, Miller and Faber, 1894, .Tour. Cin. Soc. Nat. Hist, p. 28, Hud Riv. Gr. lindsleyi is described and figured in Geo. Sur. Minn., vol. 3, p. 889. opertus, Foerste, Syn. for B. exiguus. recurvus, Ulrich, Syn. for B. cincinnati- ensis. sedaliensis, Miller and Gui-ley, 1896, Bull. No. 11, 111. St. Mus. Nat. Hist., p. 21, Chouteau Gr. similis, Ulrich, Syn. for B. platystoma. subangulans, Ulrich, Syn. for Bellero- phon cincinnatiensis. subglobulus, Ulrich, 1897, Geo. Sur. Minn., vol. 3, p. 917, Trenton Gr. BuoANiA crassa, Ulrich, 1897, Geo. Sur. Minn., vol. 3, p. 893, Hud. Riv. Gr, fUiptica, Ulrich,
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