﻿AND 
  AVES 
  OF 
  NORTH 
  AMERICA. 
  

  

  245 
  

  

  Synopsis 
  of 
  Species 
  zoith 
  their 
  StratigrapTucal 
  Positions 
  — 
  Continued. 
  

  

  GO 
  

   o 
  

  

  P 
  

  

  o 
  

  

  ►3 
  

  

  tH 
  

  

  O 
  

  

  H 
  

  

  g 
  

  

  W 
  

  

  ^ 
  

  

  ►d 
  

  

  p 
  

  

  w 
  

  

  — 
  

  

  , 
  ~i 
  

  

  o 
  

  

  

  o 
  

  

  p 
  

  

  o 
  

   B 
  

  

  CO 
  

  

  in 
  

  

  O 
  

  

  CD 
  

  

  cd 
  

  

  CD 
  

  

  o 
  

  

  o 
  

   o 
  

  

  3 
  

  

  o 
  

   cd 
  

  

  CD 
  

  

  et- 
  

  

  ►— 
  ■ 
  

  

  05 
  

   o 
  

  

  f» 
  

  

  

  

  

  

  a 
  

  

  cd 
  

  

  o 
  

   o 
  

  

  

  Hypsosaurus 
  rogersi, 
  Owen, 
  

  

  Do. 
  fraterculus, 
  Cope, 
  

  

  Rhabdopelix 
  longispinis,* 
  Cope, 
  .. 
  . 
  

  

  Palseoscincus 
  costatus, 
  Leidy, 
  

  

  Hadrosaurus 
  foulkei, 
  Leidy, 
  

  

  J)o. 
  mirabilis, 
  Leidy, 
  \ 
  

  

  Do. 
  ? 
  occidentalis, 
  Leidy, 
  . 
  . 
  

  

  Do. 
  minor, 
  Marsh, 
  

  

  Astrodon 
  johnstoni, 
  Leidy, 
  

  

  Troodon 
  formosus, 
  Leidy, 
  

  

  Megadactylus 
  polyzelus, 
  Hitchcock 
  

  

  Bathygnathus 
  boreaUs, 
  Leidy, 
  

  

  Clepsysaui-us 
  pennsylvanicus, 
  Lea, 
  . 
  

  

  Aublysodon 
  horridus, 
  Leidy, 
  

  

  Lffilaps 
  acpiilunguis, 
  Cope, 
  

  

  Do. 
  macropus, 
  Cope, 
  

  

  Coelosaurus 
  antiquus, 
  Leidy, 
  

  

  Ornithotarsus 
  iminanis, 
  Cope, 
  

  

  

  

  * 
  

  

  * 
  

  

  * 
  

  

  * 
  

   * 
  

  

  •* 
  

   * 
  

  

  * 
  

  

  * 
  

  

  * 
  

  

  -* 
  

   at 
  

  

  * 
  

  

  * 
  

  

  

  

  80 
  

  

  82 
  

  

  172 
  

  

  99 
  

  

  98 
  

  

  98 
  

  

  98 
  

  

  122- 
  J 
  

  

  99 
  

  

  120 
  

  

  122-a 
  

  

  119 
  

  

  122-a 
  

  

  120 
  

  

  100 
  

  

  118 
  

  

  119 
  

  

  120 
  

  

  RECAPITULATION. 
  

  

  Number 
  of 
  Species. 
  

  

  BATRACHIA. 
  

  

  Xenorhachia, 
  

  

  1 
  

  

  Microsauria, 
  14 
  

  

  Ganocephala, 
  3 
  

  

  Labyrinthodontia, 
  4 
  

  

  REPTILIA. 
  

  

  Ichtbyopterygia, 
  2 
  

  

  Sauropterygia, 
  8 
  

  

  Thecodontia, 
  ■ 
  , 
  - 
  4 
  

  

  Testudinata, 
  42 
  

  

  Pythonomorpha, 
  22 
  

  

  Ophidia 
  3 
  

  

  Crocodilia, 
  ■ 
  16 
  

  

  ? 
  1 
  

  

  Dinosauria, 
  15 
  

  

  AVES, 
  11 
  

  

  Total. 
  146 
  

  

  Distribution 
  in 
  Time. 
  

  

  S3 
  

  

  o 
  

  

  8J 
  

  

  & 
  

  

  So; 
  

  

  & 
  

  

  o 
  

  

  1° 
  7* 
  

  

  

  o 
  

  

  o 
  

  

  

  e 
  

  

  

  

  

  

  o 
  

  

  D 
  

  

  c 
  

   o 
  

  

  o 
  

   cd 
  

  

  CO 
  

  

  © 
  

   o 
  

  

  CD 
  

  

  s 
  

  

  CD 
  

  

  2 
  

   S" 
  

  

  o 
  

   cd 
  

   3 
  

   CD 
  

  

  '-d 
  

  

  o 
  

  

  CO 
  

  

  ■a 
  

  

  ^. 
  

  

  o 
  

  

  CD 
  

   CD 
  

  

  BATRACHIA. 
  

  

  Xenorhachia, 
  

  

  Microsauria, 
  

  

  Ganocephala, 
  

  

  Labyrinthodontia, 
  

  

  REPTILIA. 
  

  

  Ichtbyopterygia, 
  . 
  . 
  

  

  Sauropterygia, 
  

  

  Thecodontia, 
  

  

  Pythonomorpha, 
  . 
  

  

  Testudinata, 
  

  

  Ophidia, 
  

  

  Crocodilia, 
  

  

  Dinosauria, 
  

  

  AVES, 
  

  

  *Tliis 
  form 
  is 
  quite 
  as 
  likely 
  to 
  prove 
  Khynchocephalian 
  as 
  Pterosaurian 
  

   AMERI. 
  PHILOSO. 
  SOC. 
  — 
  VOL. 
  XIV. 
  — 
  62 
  

  

  1 
  

  

  13 
  

  

  3 
  

  

  2 
  

  

  ?1 
  

  

  1 
  

  

  4 
  

  

  1* 
  

   3 
  

  

  3 
  

  

  1 
  

   4 
  

  

  22 
  

   27 
  

  

  11 
  

  

  8 
  

   5 
  

  

  tThe 
  supposed 
  Jurassic 
  strata 
  of 
  tlie 
  Judith 
  River 
  may 
  not 
  belong 
  to 
  that 
  period. 
  

  

  