. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 610 PISCES. [PSB.—PTv. $emicylindricu», Newberry & Worthen, 1866, Geo. Sur. HI., vol. 2, p. 109, syn. for Sandalodua IwvisMimuB. Bpringeri. 8t. John & Worthen, 1883, Geo. Sur. III., vol. 7, p. 202, Upper Hurling- ton Gr. tumiduB, St. John & Worthen, 1883, Geo. Sur. 111., vol. 7, p. 205, Up. Burling- ton Gr. turgiduB, St. John & Worthen, 1883, Geo. Sur. 111., vol. 7, p. 20((, Keukuk Gr. PsEPiiODUB,
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 610 PISCES. [PSB.—PTv. $emicylindricu», Newberry & Worthen, 1866, Geo. Sur. HI., vol. 2, p. 109, syn. for Sandalodua IwvisMimuB. Bpringeri. 8t. John & Worthen, 1883, Geo. Sur. III., vol. 7, p. 202, Upper Hurling- ton Gr. tumiduB, St. John & Worthen, 1883, Geo. Sur. 111., vol. 7, p. 205, Up. Burling- ton Gr. turgiduB, St. John & Worthen, 1883, Geo. Sur. 111., vol. 7, p. 20((, Keukuk Gr. PsEPiiODUB, AgasBiz, 1862, Quar. Jour. Geo. Soc, vol. 18, p. 102. FEty, piephot, a peb- ble ; odous, a tooth.] Heavy, more or less Bpirally inrollcd triturating or crunhing platea invest the median range of the rami of the jaws; they are trapezoidal in outline, with undulated articular surfaces. Type P. magnus. convolutuB, Newberry & Worthen, 1860, (AspidoduB convolutus,) Geo. Sur. III., vol. 2, p. 04, Kaflkaskia Gr. crenulatUB, Newberry & Worthen, 1866, (ABpidodus crenulatUB,) Geo. Sur. III., vol. 2, p. 93, KaBkaskia Gr. eunviaitu, see P. lunnlatus. latus, St. John & Worthen, 1883, Geo. Sur. III., vol. 7, p. 72, St. Ix)uiB Gr. lunulatus, St. John & Worthen, 1883, Geo. Sur. III., vol. 7, p. 74, (misprinted cunulatUB,) Kaskaskia Gr. obliquuB, St. John & Worthen, 1883, Geo. Sur. 111., vol. 7, p. 66. Waverly or Kin- derkook 6r. placenta, Newberry & Worthen, 1866, (Helodus placenta,) Geo. Sur. III., vol. 2, p. 80, Waverly or Kinder- kook Gr. reticulatus, St. John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 417, Waverly or Kinderhook Gr. symmetricuB, St. John & Worthen, 1883, Geo. Sur. III., vol. 7, p. 71, Waverly or Kinderhook Gr. Ftericiitiivs, Agassiz, 1835, Recherches sur les Poissons Fossiles, t. 1. p. 302. [Kty. pleron, fin; ichthys, The outline of this genus reminded Hugh Miller of the figure of a man rudely <lrawn in black on a gray ground
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
