. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. [COM.—MKT. NAU.—] CEPHALOPODA. 697 brancli on eacli side perture, which gives le; in Hexamociras inches on each side irture, increasing in summit. Type II. 1888. Proc. p. 481, Niagara i\\. 1888, Proc. BoPt. rol. -23, p. 47',>, N- tfipld, 1875, (Cyrtoc- 3 Pal., vol. 2, p. 150, es. 1800, Trans. Roy. , 104. [Ety. homalos, I Shell consisting of lich is broadly and ;urved in the same attened laterally
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. [COM.—MKT. NAU.—] CEPHALOPODA. 697 brancli on eacli side perture, which gives le; in Hexamociras inches on each side irture, increasing in summit. Type II. 1888. Proc. p. 481, Niagara i\\. 1888, Proc. BoPt. rol. -23, p. 47',>, N- tfipld, 1875, (Cyrtoc- 3 Pal., vol. 2, p. 150, es. 1800, Trans. Roy. , 104. [Ety. homalos, I Shell consisting of lich is broadly and ;urved in the same attened laterally, its rder being very nar- id depressed in the ne consisting of two les, with an equally een them on the ven- cave sinus or lobe on and a rather narrow um; siphuncle cylin- and placed near the ind convex margin; ig, occupying about entire length. Type ch is described at the ;ie Devonian, toni var. cassinensis, L. seelyi, are from the I Apsidoceras mug- 1879, Pal. Indica, [Ety. proper name.] volutions deeply ein- ided by single lingui- Idles, or trifoliate or ventral lobes deep le first pair of saddles and the margins cut and saddles growing er internally; numer- i are generated from sions in the outlines of saddles, and from arge magnosellarian umbilicus. Type M. Am. Nat., vol. 23, p. S. Geo. Sur., No. 77, 2d Ann. Rep. Geo. Sur. Texas, pp. 334 to 340, Coal Meas planorbiforme. Meek t<: Wortheu, 1800, I'roc. Acad. Nat. Sci. Pliil., p. 4()!», and Geo. Sur. 111., vol. 2, p. 380, (Nautilus planorhitormis,) Upper Coal Meas. 883, Proc. Bost. Soc. , p. 268. Nautiloid .6 umbilicus perfo- ,; volutions subquad- nodes on the dorso- ;htly embracing; si- on the doreal side. ense. um, M. hayi, M. in- yalcotti, Hyatt, 1801,. Fig. 1250.—Metacoceras cavatlforme. sangamonense. Meek & Worthen, 1860, (Nautilus sangamonensis,) Proc. Acad. Nat. Sci. Phil., p. 470, and Geo. Sur. III., vol. 2, p. 386, Up. Coal Meas. Nautilus bisulcatus, Herrick, 1888, Bull. Denison Univ., vol. 3, p. 20
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
