﻿88 
  i'AL.EONTOLOGY 
  OF 
  ILLINOIS. 
  

  

  Vaticinodus 
  ? 
  carbonarius, 
  St. 
  J. 
  and 
  W, 
  

  

  PL 
  IV. 
  Fig. 
  80. 
  

  

  Maxillary 
  posterior 
  teeth 
  below 
  medium 
  size, 
  irregularly 
  oblon 
  

   Bubspatulate 
  in 
  outline, 
  moderately 
  arched 
  from 
  within 
  outward-. 
  

   Posterodateral 
  border 
  somewhat 
  rapidly 
  converging 
  from 
  the 
  acutely 
  

   rounded 
  posterior 
  extremity 
  to 
  the 
  point 
  of 
  inrollment, 
  the 
  narrow 
  

   enamel 
  fold 
  inbeveled 
  and 
  distinctly 
  defined 
  from 
  the 
  rather 
  widi 
  

   expanded 
  basal 
  rim, 
  which 
  project 
  y 
  downward 
  and 
  outward 
  

  

  beyond 
  the 
  coronal 
  limits; 
  antero-lateral 
  border 
  not 
  preserved; 
  

   inner 
  margin 
  apparently 
  broadly 
  and 
  regularly 
  arched, 
  inbeveled 
  

   inferiorly. 
  Coronal 
  prominence 
  occupying 
  half, 
  perhaps 
  more, 
  of 
  

   the 
  crown 
  surface, 
  obscurely 
  defined 
  in 
  front 
  from 
  the 
  plane 
  anterior 
  

   area, 
  gently 
  arched 
  transversely 
  with 
  the 
  wider 
  slope 
  posterior 
  of 
  

   the 
  low 
  crest. 
  Worn 
  surface 
  minutely 
  and 
  closely 
  punctate. 
  

  

  The 
  present 
  species 
  is 
  recognized 
  from 
  a 
  single 
  specimen 
  belong- 
  

   ing 
  to 
  the 
  left 
  ramus 
  of 
  the 
  upper 
  jaw. 
  Unfortunately 
  it 
  is 
  muti- 
  

   lated, 
  not 
  displaying 
  the 
  character 
  of 
  the 
  anterolateral 
  border, 
  and 
  

   the 
  coronal 
  surface 
  is 
  so 
  disfigured 
  by 
  attrition 
  as 
  to 
  obscure 
  the 
  

   original 
  contour. 
  Its 
  relations, 
  however, 
  seem 
  to 
  be 
  with 
  the 
  teeth 
  

   arranged 
  under 
  the 
  present 
  generic 
  formula, 
  of 
  which 
  it 
  is 
  an 
  in: 
  

   esting 
  recurrence 
  in 
  the 
  uppermost 
  groups 
  of 
  the 
  Carboniferous 
  

   series. 
  It 
  is, 
  however, 
  possible 
  that 
  it 
  may 
  prov< 
  to 
  be 
  generioally 
  

   allied 
  to 
  Stenopterodus. 
  Worn 
  specimens 
  of 
  the 
  corresponding 
  form 
  

   of 
  the 
  St. 
  Louis 
  species, 
  S. 
  parvuhu, 
  would 
  indeed 
  be 
  difficult 
  to 
  

   distinguish 
  from 
  the 
  present 
  unique 
  example. 
  

  

  Geological 
  position 
  and 
  locality 
  .- 
  Lower 
  Coal 
  Measun 
  b, 
  roof 
  of 
  coal 
  

   No. 
  5, 
  of 
  the 
  Illinois 
  general 
  section, 
  Carlinville, 
  Illinois. 
  

  

  \ 
  . 
  Si. 
  .1. 
  and 
  W. 
  

  

  PL 
  TV, 
  Fig. 
  SI. 
  

  

  Po 
  tenor 
  tooth 
  of 
  the 
  maxillar 
  ibrhomboidal 
  in 
  

  

  outline, 
  anterolateral 
  b 
  ry 
  oblique 
  in 
  forward 
  and 
  outward 
  

  

  . 
  making 
  a 
  comparatively 
  alight 
  angle 
  with 
  the 
  inner 
  max 
  

   whioh 
  is 
  broadly 
  arched 
  unded 
  | 
  I 
  

  

  postero 
  lai 
  Uy 
  arched, 
  com 
  raid 
  the 
  i 
  

  

  inrollment 
  at 
  an 
  with 
  the 
  oppoait 
  

  

  and 
  parallel 
  with 
  the 
  forward 
  half 
  of 
  tho 
  inner 
  - 
  basal 
  | 
  

  

  