. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Rastbites, Barrande, 1850, Graptolites de Boheme, p. 64. [Sig. a rake.] Small, almost linear, very long, stipe slightly curved; in- terior canal connecting the cellules, which are on the convex side and iso- _ â.â â lated from^'° ^'^--^rtt"*" """â each other. Type R. peregrinus. barrandi, Hall, 1859, Pal. N. Y., vol. 3, n 521, Hud. Riv. Gr. Rktioqraptiis. Hall, 1865, Dec. 2, Org. Rem.,
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Rastbites, Barrande, 1850, Graptolites de Boheme, p. 64. [Sig. a rake.] Small, almost linear, very long, stipe slightly curved; in- terior canal connecting the cellules, which are on the convex side and iso- _ â.â â lated from^'° ^'^--^rtt"*" """â each other. Type R. peregrinus. barrandi, Hall, 1859, Pal. N. Y., vol. 3, n 521, Hud. Riv. Gr. Rktioqraptiis. Hall, 1865, Dec. 2, Org. Rem., p. 115. [VXy. rete, net; grapko, 1 write.] Frond simple or compound; stipes numerous arranged bilaterally on an axis, elongate, oval or lanceolate with longitudinal axis and reticulate struc- ture ; margins with mucronate points. Type R. tentaculatus. barrandi, Hall, 1860, 13th Rep. N. Y. St. Mus. Nat. Hist., p. 61, Hud. Riv. Gr. eucharis, HhU, 1865, Can. Org. Rem., Dec- ade 2, p. 146, Utica Slate, geinitzanus. Hall, 1859, Pal. N. Y., vol. 3, p. 518, Hud. Riv. Gr. tentaculatus, Hall, 1858, (GraptolithuB tentaculatus,) Rep. of Prog. Can. (ieo. Sur., p. 134, and Dec. 2, Org. Rem., p. 116, Quebec Gr. Rktiolites, Barrande, 1860, Graptolites »le Boheme, p. 68. [Kty. rete, net; lUhos, stone.] Stipes thin, flat, elongate, triangu- lar, composed of two series of cellules symmetrically arranged, in regard to the axis; orifices on the sides of the triangle. Type R. gei- nitzanus. ensiformis, Hall, 1858, (Grap- tolithus ensiformis,) Rep. of Prog. Can. Geo. Sur., p. 133, and Decade 2, Org. Rem., p. 114, Quebec Gr. venosus. Hall, 1852, (Graptolithus veno- sus.) Pal. N. Y., vol. 2, p. 40, Clinton Gr. Rhizooraptus, Spencer, 1878, Can. Nat., vol. 8, p. 460. [Ety. rhiza, root; grapho, I write.] Cy- atbiform, bi- f u r eating b r a n c hes with dichoto- mous termi- nations and more or less ^^o- 2)S.âRhisugraptai bui reticulate; »'"*"'⢠stem terminating in a bulb.
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
