﻿Plate 
  31 
  

  

  Page 
  

   Fig. 
  1. 
  Zonopera 
  compressa, 
  new 
  species 
  90 
  

  

  Portion 
  of 
  transverse 
  section, 
  X25. 
  

  

  Lower 
  Cretaceous 
  (Aptian): 
  Faringdon, 
  England. 
  

  

  Figs. 
  2-4. 
  Zonopora 
  arborea 
  Koch 
  and 
  Dnnker, 
  1S37 
  90 
  

  

  2. 
  Transverse 
  section, 
  X25. 
  

   3, 
  4. 
  Tangential 
  section, 
  X 
  12 
  and 
  X2f>. 
  

  

  Lower 
  Cretaceous 
  (Neocomian) 
  : 
  Berklingen, 
  Germany. 
  

   Figs. 
  5, 
  6. 
  Neuroporella 
  hemispherica, 
  new 
  species 
  34 
  

  

  5. 
  Meridian 
  section, 
  X25, 
  showing 
  the 
  internal 
  structure. 
  

  

  6. 
  Tangential 
  section, 
  X50, 
  exhibiting 
  the 
  microscopic 
  wall 
  

  

  structure. 
  

   Lower 
  Cretaceous 
  (Aptian): 
  Faringdon, 
  England. 
  

  

  Figs. 
  7, 
  8. 
  Ceriopora 
  dimorphocella, 
  new 
  species 
  29 
  

  

  Tangential 
  section, 
  X12 
  and 
  X25, 
  illustrating 
  the 
  wall 
  

  

  si 
  rud 
  urc 
  

   Lower 
  Cretaceous 
  (Aptian): 
  Faringdon, 
  England. 
  

  

  Fig. 
  9. 
  Clausa 
  zonifera, 
  new 
  species 
  SO 
  

  

  Tangential 
  thin 
  section, 
  X25. 
  

  

  Lower 
  Cretaceous 
  (Aptian) 
  : 
  Faringdon, 
  England. 
  

   124 
  

  

  o 
  

  

  