﻿PLATE 
  XX 
  

  

  V 
  

  

  • 
  

  

  Page. 
  

  

  Copodub 
  PUsiLLvs. 
  St. 
  J. 
  and 
  W 
  231 
  

  

  Fig. 
  la. 
  Maxillary 
  tooth, 
  vj.-w 
  from 
  above, 
  outline 
  partially 
  ''. 
  

  

  do., 
  transverse 
  profile 
  from 
  Inner 
  margin; 
  1 
  c 
  do., 
  longitudinal 
  profile 
  

   from 
  the 
  lateral 
  border. 
  Chester: 
  Chester. 
  Illinois. 
  Dr. 
  Geo. 
  Hambach. 
  

  

  Copodus 
  Van 
  Hornii. 
  St. 
  J. 
  and 
  W 
  

  

  Fig. 
  2 
  a. 
  Mandibular 
  tooth, 
  view 
  from 
  above, 
  outline 
  partially 
  restored; 
  2 
  '<. 
  do., 
  from 
  

   the 
  outer 
  margin: 
  2 
  c, 
  do., 
  longitudinal 
  profile 
  from 
  the 
  right 
  border: 
  'id. 
  

   do., 
  inferior 
  surface. 
  St. 
  Louis: 
  Alton. 
  111. 
  Mr. 
  Van 
  Home. 
  

  

  Fig. 
  3 
  a. 
  Maxillary 
  tooth, 
  from 
  above: 
  3'/. 
  do., 
  from 
  the 
  anterior 
  margin: 
  3 
  c, 
  do., 
  

   transverse 
  profile 
  from 
  the 
  posterior 
  margin; 
  3 
  </, 
  do., 
  longitudinal 
  pro- 
  

   file 
  from 
  the 
  left 
  border; 
  3 
  e. 
  do., 
  inferior 
  surface. 
  St. 
  Louis: 
  St. 
  Lou 
  

   Missouri. 
  Mr. 
  St. 
  John. 
  

  

  Phammodvs 
  Braaam, 
  St. 
  J. 
  and 
  \V 
  $r> 
  

  

  Maxillary 
  tooth, 
  right 
  Bide, 
  flew 
  Irom 
  above; 
  4 
  b, 
  do., 
  transverse 
  profile 
  

   from 
  inner 
  margin; 
  4 
  c. 
  do., 
  anterior 
  margin: 
  4 
  d. 
  exterior 
  bonier; 
  out- 
  

   line 
  showing 
  probui'!<' 
  disposition 
  ol 
  teeth 
  ui"'n 
  the 
  jaw. 
  Upper 
  Bor- 
  

   liugton 
  limestone 
  fish-bed: 
  Burlington. 
  Mr. 
  St. 
  John. 
  

   '/. 
  i 
  I. 
  Similar 
  views 
  of 
  a 
  left 
  side 
  tooth 
  of 
  the 
  same 
  form: 
  5 
  ilar 
  

  

  rder. 
  Upper 
  Burlington 
  limestone; 
  Louisa 
  county. 
  Iowa. 
  Mr. 
  B 
  

   John. 
  

   View 
  from 
  above 
  of 
  a 
  large 
  example 
  Ol 
  the 
  same 
  form. 
  ..inline 
  partial] 
  

   stored; 
  I 
  '. 
  do., 
  traneveree 
  proflle 
  from 
  posterior 
  margin: 
  6 
  <-. 
  do* 
  

   ttoolar 
  border. 
  I'pper 
  Burlington 
  fish-bed; 
  Louisa 
  county. 
  Iowa. 
  Mr. 
  

   sp 
  ringer. 
  

   A 
  similar 
  example 
  of 
  the 
  Opposite 
  Bide, 
  from 
  above; 
  7 
  b, 
  do., 
  exterior 
  bOT- 
  

   der; 
  " 
  •. 
  do., 
  artleular 
  border; 
  " 
  ■'. 
  do., 
  anterior 
  margin. 
  Same 
  forma- 
  

   tion, 
  looaitty 
  aad 
  eollection. 
  

  

  ithu 
  loft 
  side, 
  from 
  above; 
  B 
  '. 
  do., 
  posterior 
  margin, 
  trans- 
  

   feree 
  profile; 
  ><•, 
  do., 
  anterior 
  margin: 
  id, 
  .1 
  i.. 
  articular 
  border, 
  longi- 
  

   tudinal 
  proflle; 
  s 
  -, 
  do., 
  exterior 
  border. 
  Upper 
  Burlington 
  division 
  

   bods: 
  Qatnej 
  torWorthen. 
  

  

  MmUar 
  view- 
  ol 
  .i 
  specimen 
  of 
  the 
  same 
  form. 
  right 
  er* 
  

  

  ttoolar 
  border, 
  end 
  outline 
  showing 
  larollmanl 
  of 
  the 
  mandlbalar 
  scries 
  

   ..f 
  te.-tii 
  from 
  within 
  outwards. 
  Dppar 
  BarUngton 
  Hi 
  

  

  ton. 
  Mr 
  St. 
  John. 
  

  

  Ubnlar 
  tooth, 
  left 
  aide, 
  view 
  from 
  a 
  I 
  :nar- 
  

  

  gin: 
  i" 
  . 
  b 
  anterior 
  margin; 
  It 
  d 
  from 
  arttoalar 
  border; 
  

  

  r 
  Barllngtofl 
  Umeel 
  v 
  a. 
  

  

  M 
  9prli 
  

  

  Fig. 
  II 
  ■ 
  Similar 
  vi.-vv« 
  of 
  n 
  Inri: 
  nndibulu- 
  

  

  right 
  sld 
  formation, 
  loealltr 
  and 
  oollectl< 
  

  

  Fig. 
  4 
  a. 
  

  

  Fig. 
  Bo, 
  

   Fig. 
  6 
  a. 
  

  

  Fig. 
  7 
  a. 
  

  

  : 
  

  

  i 
  ..- 
  

  

  I 
  it. 
  i» 
  a 
  

  

  