﻿120 
  THE 
  EXTINCT 
  BATRACHIA, 
  REPTILIA 
  

  

  ATTBLYSODON, 
  Leidy. 
  

  

  Dinodon, 
  Leidy 
  (not 
  of 
  Dumeril 
  & 
  Bibron) 
  Proc. 
  Ac. 
  N. 
  Sci., 
  Phila., 
  1857. 
  Aublysodon, 
  Leidy, 
  1. 
  c. 
  1868. 
  

  

  This 
  genus 
  differs 
  in 
  its 
  dentition 
  from 
  Laelaps 
  and 
  Megalosaurus 
  ; 
  the 
  teeth 
  present 
  

   a 
  posterior 
  plane 
  whose 
  margins 
  are 
  more 
  or 
  less 
  denticulate, 
  in 
  place 
  of 
  the 
  acute 
  crenate 
  

   margin 
  of 
  the 
  former. 
  None 
  of 
  its 
  bones 
  are 
  known. 
  

  

  AUBLYSODON 
  HORRIDUS. 
  

  

  A. 
  mirandus, 
  Leidy 
  1. 
  c. 
  1868, 
  298. 
  Dinodon 
  liorridus, 
  Leidy, 
  Trans. 
  Amer. 
  Philos. 
  Soc., 
  xi. 
  1860, 
  p. 
  140, 
  Tab. 
  

  

  Upper 
  Jurassic 
  Bad 
  lands 
  of 
  the 
  Judith 
  River, 
  Nebraska. 
  

  

  TROODON, 
  Leidy. 
  -\ 
  

  

  TROODON 
  FORMOSUS, 
  Leidy. 
  

   Trans. 
  Amer. 
  Phil. 
  Soc, 
  1860,147. 
  

  

  Upper 
  Jurassic 
  bad 
  lands 
  of 
  Judith 
  River, 
  Nebraska. 
  

  

  SYMPHYPODA. 
  

  

  First 
  series 
  of 
  tarsal 
  bones 
  confluent 
  with 
  each 
  other, 
  and 
  with 
  the 
  tibia.* 
  Fibula 
  

   distally 
  much 
  reduced. 
  Anterior 
  part 
  of 
  ilium 
  dilated, 
  plate-like. 
  

  

  Genera 
  Ornithotarsus, 
  Cope. 
  Compsognathus 
  ; 
  "Wagner 
  Abhandl. 
  Mathem. 
  Nat. 
  

   Classe 
  Mimchen 
  Bd. 
  IX. 
  

  

  The 
  latter, 
  says 
  Gegenbaur, 
  is 
  the 
  form 
  among 
  terrestrial 
  Saurians 
  nearest 
  the 
  birds, 
  

   as 
  Archaeopteryx 
  is 
  the 
  avine 
  type 
  nearest 
  the 
  Saurians. 
  From 
  the 
  upper 
  Jurassic 
  slates 
  

   of 
  Solenhofen. 
  I 
  add 
  a 
  few 
  of 
  its 
  characters 
  from 
  Wagner. 
  

  

  Inner 
  toe 
  represented 
  by 
  a 
  rudimental 
  metatarsus. 
  Whole 
  foot 
  a 
  little 
  larger 
  than 
  

   femur 
  ; 
  humerus 
  one-half 
  femur. 
  Of 
  the 
  only 
  known 
  species, 
  C. 
  gracilis, 
  Wagner 
  gives 
  

   the 
  following 
  measurements 
  : 
  Length 
  of 
  head, 
  2" 
  6'" 
  (French) 
  ; 
  of 
  vertical 
  column 
  to 
  

   opposite 
  acetabulum, 
  10" 
  ;. 
  of 
  anterior 
  extremity, 
  4" 
  7'"; 
  of 
  posterior, 
  9" 
  3'". 
  

  

  ORNITHOTARSUS, 
  Cope. 
  

  

  Dr. 
  Samuel 
  Lockwood 
  of 
  Keyport, 
  Monmouth 
  county, 
  New 
  Jersey, 
  discovered 
  in 
  a 
  

   clay 
  bank 
  on 
  the 
  shore 
  of 
  Raritan 
  Bay, 
  a 
  remarkable 
  fragment 
  of 
  a 
  gigantic 
  Dinosaur. 
  

  

  * 
  As 
  first 
  pointed 
  out 
  by 
  Prof. 
  Gegenbaur, 
  Bcitr. 
  z. 
  Vergleich 
  Anatomie 
  Wirbclthiere 
  ; 
  Carpus 
  U. 
  Tarsus. 
  186 
  . 
  

   f 
  The 
  following 
  genus 
  and 
  species 
  may 
  belong 
  among 
  the 
  Goniopoda. 
  Leidy 
  includes 
  it 
  among 
  his 
  cretaceous 
  

   Reptilia, 
  but 
  adds 
  that 
  it 
  may 
  be 
  a 
  fish. 
  

  

  DIPLOTOMODON, 
  Leidy. 
  

   Tomodon, 
  Leidy, 
  not 
  of 
  Dumeril 
  and 
  Bibron. 
  Proceedings 
  A. 
  N. 
  Sci., 
  Phila.. 
  1868, 
  p. 
  

   Diplotomodon 
  HOKRiFicus, 
  Leidy, 
  Cretaceous 
  Reptiles, 
  102, 
  Tab. 
  Known 
  from 
  a 
  single 
  tooth. 
  

   Cretaceous 
  green 
  sand 
  of 
  New 
  Jersey. 
  

  

  