﻿376 
  C. 
  J. 
  A. 
  MEYER 
  ON 
  THE 
  CRETACEOUS 
  ROCKS 
  OF 
  

  

  Ananchytes 
  subglobosus, 
  Leske 
  D. 
  

  

  — 
  - 
  — 
  Isevis, 
  Deluc 
  BH. 
  

  

  Discoidea 
  subuculus, 
  Klein 
  BH. 
  

  

  Goniophorus 
  hmulatus, 
  Ag 
  D. 
  

  

  Micraster, 
  sp 
  BH. 
  

  

  Pseudodiadema 
  Michelini, 
  Ag 
  BH. 
  

  

  variolare, 
  Brongn 
  BH. 
  

  

  Troclius, 
  sp 
  D. 
  

  

  Caprotina, 
  sp 
  D. 
  

  

  Exogyra 
  columba, 
  Lam. 
  (small 
  var.) 
  W. 
  

  

  Lima, 
  sp 
  D. 
  

  

  ornata, 
  D' 
  Orb 
  D. 
  

  

  Janira 
  quinquecostata, 
  Sow 
  BH. 
  

  

  , 
  sp 
  BH. 
  

  

  Pecten 
  rbotomagensis, 
  D' 
  Orb 
  D. 
  

  

  Puzosianus, 
  Math 
  BH. 
  

  

  asper, 
  Lam 
  BH. 
  

  

  Trigonia, 
  sp. 
  (allied 
  to 
  T. 
  sinuata, 
  Park.) 
  D. 
  

  

  Rhynchonella 
  dimidiata, 
  Sow 
  D. 
  

  

  grasiana, 
  L' 
  Orb 
  D. 
  BH. 
  

  

  Schloenbachi, 
  Lav 
  BH. 
  

  

  Terebratella 
  pectita, 
  Sow 
  D. 
  

  

  Terebratula 
  rugulosa, 
  Morris 
  D. 
  

  

  Bed 
  12. 
  — 
  Compact, 
  nodular, 
  rubbly 
  bed, 
  with 
  green 
  grains 
  and 
  

   quartz 
  grains, 
  in 
  a 
  chalky 
  paste. 
  

  

  Thickness 
  variable 
  : 
  1 
  ft. 
  at 
  White 
  Cliff, 
  2 
  ft. 
  at 
  Beer 
  Head, 
  2 
  ft. 
  

   at 
  "Weston, 
  2| 
  ft. 
  at 
  Dunscombe. 
  

  

  Characteristic 
  fossils 
  — 
  Catopygus 
  carinatus 
  and 
  Ammonites 
  varians. 
  

  

  The 
  top 
  of 
  this 
  bed 
  usually 
  presents 
  an 
  uneven 
  surface 
  at 
  its 
  

   junction 
  with 
  the 
  next 
  above, 
  the 
  junction 
  of 
  the 
  two 
  being 
  also 
  

   marked 
  in 
  places 
  by 
  a 
  ferruginous 
  line. 
  

  

  May 
  be 
  seen 
  at 
  White 
  Cliff 
  and 
  in 
  all 
  sections 
  from 
  Beer 
  Head 
  

   westward 
  to 
  top 
  of 
  Dunscombe 
  cliff. 
  

  

  Fossils 
  : 
  — 
  

  

  Bryozoa 
  (many 
  species) 
  D. 
  BH. 
  Ax. 
  

  

  Scypbia 
  (species) 
  D. 
  BH. 
  

  

  Spongia 
  (several 
  species) 
  '..:..;.: 
  D. 
  BH. 
  Ax. 
  

  

  [These 
  are 
  mostly 
  coated 
  with 
  green 
  matter, 
  and 
  more 
  or 
  less 
  covered 
  with 
  

   SerpulcB 
  and 
  the 
  attached 
  valves 
  of 
  Crania 
  and 
  Plicatula.~] 
  

  

  Ananchytes 
  subglobosus, 
  Leske 
  BH. 
  &c. 
  

  

  Catopygus 
  carinatus, 
  Ooldf. 
  BH. 
  &c. 
  

  

  Discoidea 
  subuculus, 
  Klein 
  BH. 
  D. 
  

  

  Echinoconus 
  (G-alerites) 
  castaneus, 
  Brongn 
  D. 
  

  

  Nucleolites 
  lacunosus, 
  Goldf. 
  D. 
  

  

  Pyrina 
  Desmoulinsii, 
  L'Arch, 
  D. 
  

  

  Prattii, 
  Forbes 
  BH. 
  

  

  ovulum, 
  Ag 
  BH. 
  

  

  Salenia 
  gibba, 
  Ag 
  BH. 
  

  

  — 
  — 
  petalifera, 
  Lesm 
  '.'. 
  BH. 
  

  

  Spatangus 
  buf'o, 
  Brongn 
  : 
  BH. 
  

  

  lsevis, 
  Leluo 
  D. 
  

  

  Ammonites 
  Mantelli, 
  Sow 
  Ax. 
  

  

  Coupei, 
  Brongn 
  Ax. 
  

  

  varians, 
  Soto 
  WC. 
  D. 
  

  

  Nautilus 
  Largilliartianus, 
  D' 
  Orb 
  Ax. 
  D. 
  

  

  — 
  Fittoni, 
  Sharpe 
  Ax. 
  

  

  tus, 
  L'Orb 
  Ax. 
  

  

  