﻿PLATE 
  II. 
  

  

  Page. 
  

  

  1 
  Psephodi-b 
  latcs, 
  St. 
  J. 
  and 
  W 
  

  

  la. 
  A 
  small 
  mandibular 
  median 
  tooth, 
  Been 
  frc 
  in 
  a 
  

  

  face 
  bordering 
  the 
  inner 
  margin 
  broken 
  away: 
  1 
  b. 
  do. 
  file 
  

   from 
  inner 
  margin: 
  1 
  c. 
  do., 
  from 
  outer 
  margin; 
  1 
  d. 
  <! 
  ml 
  

   border: 
  1 
  e. 
  do., 
  antero-lutoral 
  border, 
  showing 
  longitudinal 
  profile. 
  - 
  

   Lonlfl 
  limestone; 
  Alton. 
  Illinois; 
  Mr. 
  Van 
  Home. 
  

   'i.a.b.c. 
  d.e. 
  Similar 
  views 
  of 
  ■ 
  very 
  small 
  example 
  of 
  the 
  same 
  form, 
  left 
  

   ramus, 
  enlarged; 
  tf. 
  do., 
  inferior 
  surface. 
  Same 
  formation, 
  locality 
  and 
  

   collection. 
  

   A 
  serial 
  tooth, 
  view 
  f.oin 
  above; 
  :> 
  '/.do.. 
  outer 
  margin 
  transverse 
  profile; 
  3c. 
  

   do., 
  from 
  the 
  postero-later.v 
  ilnalproflli 
  

   Louis, 
  Missouri. 
  O.St 
  John. 
  

   Psmphodub 
  i. 
  in 
  i' 
  i. 
  ATi.-. 
  at 
  J. 
  and 
  w" 
  ~* 
  

  

  Views 
  of 
  tooth 
  from 
  abov< 
  from 
  the 
  laternl 
  border; 
  1 
  c. 
  do., 
  i 
  

  

  margin: 
  4 
  d. 
  <lo., 
  from 
  the 
  outer 
  margin. 
  Chester 
  limestone: 
  I 
  

   III. 
  . 
  'h. 
  

  

  ;phodus 
  placenta. 
  St. 
  J. 
  and 
  \Y 
  

  

  J 
  Fik 
  r 
  . 
  5 
  a. 
  A. 
  matore 
  tooth 
  referred 
  to 
  right 
  ramus 
  of 
  mandible, 
  frvin 
  al 
  !o.. 
  

  

  Ir'.in 
  inner 
  margin: 
  • 
  from 
  the 
  anterior 
  and 
  :ior 
  

  

  bonier. 
  Upper 
  Bah-bed. 
  Klnderhook; 
  burling; 
  In* 
  

  

  mutn. 
  

   I 
  ik' 
  .1 
  8imilar 
  views 
  of 
  a 
  smaller 
  tooth, 
  occupying 
  the 
  - 
  

  

  the 
  jiiw 
  as 
  the 
  Inst. 
  Same 
  horizon 
  and 
  looallty. 
  Tr.'f. 
  WorthOD. 
  

   7a.b.0.<L 
  Similar 
  views 
  of 
  an 
  elongate 
  individual 
  of 
  left 
  ramus 
  "f 
  upper 
  jaw. 
  

   Same 
  formation, 
  locality 
  and 
  oolleotlon. 
  

  

  B 
  a. 
  b. 
  0. 
  'I. 
  The 
  san 
  I 
  a 
  small. 
  - 
  in 
  tooth. 
  I 
  the 
  right 
  

  

  ramus 
  of 
  upper 
  Jaw, 
  the 
  coronal 
  region 
  much 
  worn 
  it 
  nal 
  

  

  Of 
  llrloduf 
  plaet 
  *■ 
  :i. 
  locality 
  and 
  collection. 
  

  

  Fig. 
  

  

  rig. 
  

  

  

  :in. 
  

  

  