. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. [OI8.âHAR. HKl.âHOI,.] PISCES. 699 orthen, 1878, (ii'o. [47, Kinderhook nr & Worthen, 1SS3, 7, p. 260, KaKkiiB- orthen, 1883, Geo. 49, Keokuk Gr. 1830, PoIbb. F(hs., glyploi, sculptured; tag, sometimes iien- )rBal opposite vcn- orsal opposite anul; Dg below; bIiouMit minute; scales of rtion to the animal, ured. Type G. el- Lfrassiz, 1836, Poies. 179, Devonian, leaves, 1889. Trans. vol. 6, p. 77, Low. e, 188
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. [OI8.âHAR. HKl.âHOI,.] PISCES. 699 orthen, 1878, (ii'o. [47, Kinderhook nr & Worthen, 1SS3, 7, p. 260, KaKkiiB- orthen, 1883, Geo. 49, Keokuk Gr. 1830, PoIbb. F(hs., glyploi, sculptured; tag, sometimes iien- )rBal opposite vcn- orsal opposite anul; Dg below; bIiouMit minute; scales of rtion to the animal, ured. Type G. el- Lfrassiz, 1836, Poies. 179, Devonian, leaves, 1889. Trans. vol. 6, p. 77, Low. e, 1883, Proc. Am. , 20, p. 629. [Kty. iza, root.] Founded )ine teeth. Tlie def- leager for identilira- nus may never again Type G. Berrata. }83, Proc. Am. Pliil. 629, Permian, z, 1833, Kecherches FoBsiles, t. 1, p. 87. ; akan- spines lly ta- and ack- }aBe )ering; feebly ows of surface d with pji i,which JYj on the *,1 pe G. MJ 1873, p. 331, berry, )1. 1, p. lie. & Wor- ur. 111., cuk Gr. 1868, b, Coal 1868, 0, Sub- Fia. n.'!^y- lOfio racautluis 111- â niu^« 'en»- Anterior Col lee- fâce. iniskil- . ^ , & Worthen, m Geo. 1. 354. [Ety. harpe, a hook; odmu, tooth.] Teeth laterally elongated, vertically arched, gently carved outward in the concave face; tnargins nearly parallel; crown com- pressed along the crest; serrated, ex- panded below; convex face low, op- posite face concave; coronal borders produced inbeveled; base strong, ob- ti(iuely produced: lateral angles well defined. Type H. dentatus, or, more properly, H. occidentalis. compactus, St. .John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 355, Kaskaskia Gr. occidentalis, St. John <& Worthen, 1875, Geo. Sur. III., vol. 6, p. 365, St. Louis Gr. Hemodus, Newberry, 1875, Ohio Pal., vol. 2, p. 62. [Ety. mHos, sun ; odmu, tooth.] Distinguished from Dipterus by having tlie upper palate teeth united, forming u rounded, semicircular, triturating plate, bearing radiating tuberculated ridges. Type H. l
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
