﻿PYCNODONTLDiE. 
  283 
  

  

  Py 
  modus 
  disparilis, 
  J. 
  Cornuel, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  vol. 
  v. 
  

  

  (1877), 
  p. 
  614, 
  pi. 
  xi. 
  figs. 
  19, 
  20.— 
  Neocomian 
  : 
  Wassy, 
  

  

  Haute 
  Marne. 
  [? 
  Gyrodus.'] 
  

   Py 
  modus 
  het&rodon, 
  L. 
  Didelot, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  vol. 
  iii. 
  

  

  (1875), 
  p. 
  254, 
  pi. 
  vi. 
  — 
  Middle 
  Neocomian; 
  near 
  Aix-les- 
  

  

  Bains, 
  Savoy. 
  

   Pycnodus 
  heterotypus, 
  J. 
  Cornuel, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  

  

  vol. 
  v. 
  (1877), 
  p. 
  613, 
  pi. 
  xi. 
  figs. 
  12-18.— 
  Neocomian 
  ; 
  

  

  Wassy 
  and 
  Yallerest, 
  Haute 
  Marne. 
  

   Pycnodus 
  irregularis, 
  H. 
  E. 
  Sauvage 
  (non 
  Quenstedt), 
  Bull. 
  Soc. 
  

  

  Sci. 
  Nat. 
  Tonne, 
  vol. 
  xxxiii. 
  pt. 
  ii. 
  (1879), 
  p. 
  44, 
  pi. 
  i. 
  

  

  fig. 
  7. 
  — 
  Cenomanian 
  ; 
  Seignelay, 
  Yonne, 
  France. 
  

   Pycnodus 
  quadratifer, 
  J. 
  Cornuel, 
  Bull. 
  Soc. 
  Geol. 
  France, 
  [3] 
  

  

  vol. 
  v. 
  (1877), 
  p. 
  615, 
  pi. 
  xi. 
  figs. 
  21, 
  22.— 
  Neocomian 
  ; 
  

  

  Wassy, 
  Haute 
  Marne. 
  

   Ellipsodus 
  incisus, 
  J. 
  Cornuel, 
  ibid. 
  p. 
  617, 
  pi. 
  xi. 
  figs. 
  26, 
  27. 
  — 
  

  

  Upper 
  Neocomian 
  ; 
  Wassy. 
  [Type 
  of 
  Ellipsodus, 
  Cornuel.] 
  

   Uranoplosus 
  arctatus, 
  E. 
  D. 
  Cope, 
  Journ. 
  Acad. 
  Nat. 
  Sci. 
  Philad. 
  

  

  [2] 
  vol. 
  ix. 
  (1894), 
  p. 
  445, 
  pi. 
  xx. 
  fig. 
  8.— 
  Lower 
  Creta- 
  

   ceous 
  ; 
  Oklahoma, 
  U.S.A. 
  

   Uranoplosus 
  cotteaui, 
  H. 
  E. 
  Sauvage, 
  Bull. 
  Soc. 
  Sci. 
  Nat. 
  Yonne, 
  

  

  vol. 
  xxxiii. 
  pt. 
  ii. 
  (1879), 
  p. 
  47, 
  pi. 
  i. 
  fig. 
  1. 
  [Type 
  of 
  

  

  Uranoplosus, 
  Sauvage.] 
  

   Uranoplosus 
  flectidens, 
  E. 
  D. 
  Cope, 
  loc. 
  cit. 
  (1894), 
  p. 
  446, 
  pi. 
  xx. 
  

  

  fig. 
  9. 
  — 
  Lower 
  Cretaceous 
  ; 
  Oklahoma, 
  U.S.A. 
  

  

  Other 
  indeterminable 
  Cretaceous 
  teeth 
  which 
  seem 
  to 
  be 
  Pycno- 
  

   dont 
  are 
  also 
  named 
  as 
  follows 
  : 
  — 
  

  

  Sphcerodus 
  crassus, 
  L. 
  Agassiz, 
  Poiss. 
  Foss. 
  vol. 
  ii. 
  pt. 
  i. 
  (1833), 
  

   p. 
  15, 
  pt. 
  ii. 
  (1844), 
  p. 
  212, 
  pi. 
  lxxiii. 
  figs. 
  101-108. 
  

   Figures 
  by 
  Faujas 
  St. 
  Fond, 
  Hist. 
  Nat. 
  Mont. 
  St.-Pierre, 
  

   Maestricht 
  (1799), 
  pi. 
  xix. 
  figs. 
  3, 
  5. 
  — 
  Danian 
  ; 
  Maas- 
  

   tricht, 
  Holland. 
  

  

  Sphosrodus 
  mitrula, 
  L. 
  Agassiz, 
  torn. 
  cit. 
  pt. 
  ii. 
  (1844), 
  p. 
  214, 
  

   pi. 
  lxxiii. 
  figs. 
  71-73. 
  — 
  Greensand 
  ; 
  Eegensburg, 
  Bavaria. 
  

  

  Sphwrodus 
  tenuis, 
  A. 
  E. 
  Eeuss, 
  Yerstein. 
  bohm. 
  Kreideform. 
  pt. 
  i. 
  

   (1845), 
  p. 
  9. 
  — 
  Planerkalk; 
  Bohemia. 
  

  

  The 
  Cretaceous 
  teeth 
  commonly 
  described 
  under 
  the 
  provisional 
  

   generic 
  name 
  of 
  Ancistrodon 
  (F. 
  Boemer, 
  ex 
  Debey, 
  MS., 
  Kreidebild. 
  

   Texas, 
  1852, 
  p. 
  30) 
  or 
  Ankistrodus 
  (L. 
  G. 
  de 
  Koninck, 
  Bull. 
  Acad. 
  

   Eoy. 
  Sci. 
  Belg. 
  [2] 
  vol. 
  xxix. 
  1870, 
  p. 
  77) 
  are 
  also 
  probably 
  for 
  the 
  

   most 
  part 
  the 
  prehensile 
  teeth 
  of 
  Pycnodonts. 
  Some 
  of 
  the 
  Tertiary 
  

  

  