﻿Plate 
  2 
  

  

  Pago 
  

  

  Figs. 
  1-7. 
  Cardioecia 
  neocomiensis 
  D'Orbigny, 
  1853 
  10 
  

  

  1. 
  Fragments, 
  natural 
  size. 
  

  

  2. 
  Portion 
  of 
  a 
  zoarium, 
  X12. 
  Many 
  of 
  the 
  tubes 
  arc 
  

  

  visible. 
  The 
  zone 
  of 
  growth 
  is 
  short 
  and 
  thick. 
  

  

  3. 
  A 
  bifurcated, 
  ovicelled 
  frond, 
  • 
  12. 
  The 
  ovicells 
  arc 
  

  

  complete 
  and 
  symmetrical. 
  The 
  zone 
  of 
  growth 
  is 
  

   short 
  and 
  1 
  hick. 
  

  

  4. 
  Fragment, 
  X12, 
  in 
  which 
  the 
  peristomes 
  arc 
  little 
  salient 
  

  

  and 
  the 
  ovicell 
  little 
  regular. 
  

  

  5. 
  Zoarium, 
  X12, 
  with 
  peristomes 
  almost 
  adjacent. 
  

  

  6. 
  Ovicelled 
  zoarial 
  fragment, 
  X12. 
  The 
  peristome.- 
  arc 
  

  

  little 
  salient 
  . 
  The 
  ovicells 
  arc 
  little 
  regular 
  and 
  little 
  

   symmetrical. 
  

  

  7. 
  Frond 
  with 
  salient 
  peristomes, 
  X12. 
  The 
  tubes 
  are 
  

  

  distinct 
  only 
  in 
  the 
  inferior 
  part. 
  

   Lower 
  Cretaceous 
  (Valangian) 
  : 
  Sainte-Croix, 
  Switzer- 
  

   land. 
  

   Fig. 
  8. 
  Cardioecia 
  neocomiensis, 
  var. 
  parvula, 
  new 
  variety-- 
  42 
  

  

  Ovicelled 
  specimen, 
  Xl2, 
  illustrating 
  the 
  small 
  peristomes. 
  

   Lower 
  Cretaceous 
  (Valangian): 
  Sainte-Croix, 
  Switzerland. 
  

  

  Figs. 
  9, 
  10. 
  Cardioecia 
  neocomiensis, 
  var. 
  entalophoroides, 
  new 
  variety 
  42 
  

  

  Two 
  ovicelled 
  specimens, 
  X12. 
  The 
  tubes 
  are 
  in 
  quin- 
  

   cunx 
  or 
  in 
  transverse 
  rows. 
  

   Lower 
  Cretaceous 
  (Valangian): 
  Sainte-Croix, 
  Switzer- 
  

   land. 
  

  

  Fig. 
  11. 
  Trigonoecia 
  neocomiensis 
  D'Orbigny, 
  1853 
  39 
  

  

  A 
  frond, 
  X12, 
  on 
  which 
  the 
  wrinkles 
  are 
  quite 
  visible. 
  

   Lower 
  Cretaceous 
  (Valangian): 
  Sainte-Croix, 
  Switzerland. 
  

  

  95 
  

  

  