﻿Plate 
  XII. 
  

  

  m, 
  Palmosyops, 
  

  

  , 
  Dryptosaurus. 
  

   n, 
  Selenacodon, 
  

   opter?jx. 
  

  

  rus, 
  Dtyloclcciis, 
  

   arcs. 
  Mammals, 
  

   Z'tenacodon. 
  

  

  mmosaiirus. 
  

  

  CA. 
  

  

  