﻿598 
  DE. 
  W. 
  TEASER 
  HEME 
  OX 
  [Dec. 
  1897, 
  

  

  gollevillensis, 
  d'Orb., 
  Turritella 
  unicarinata, 
  Tate, 
  Troclius 
  sp. 
  T 
  

  

  Ostrea 
  vesicularis, 
  Lam., 
  Terebratula 
  carnea, 
  Sow., 
  Rhynchonella 
  

  

  plicatilis, 
  var. 
  octoplicata, 
  Sow., 
  Pecten 
  cretosus, 
  Defr., 
  Magas 
  

  

  pumilus, 
  Sow., 
  Parasmilia 
  centralis, 
  Mant., 
  Porosphcera 
  globularis 
  

  

  (v.Hag.); 
  

  

  OccurriDg 
  mainly 
  in 
  the 
  lower 
  portions 
  of 
  the 
  limestone 
  : 
  — 
  Mosa- 
  

   saurus 
  gracilis, 
  Owen, 
  Terebratulina 
  Defrancei, 
  Brongn., 
  T. 
  abrupta, 
  

   Tate, 
  Echinocorys 
  scutatus, 
  Leske, 
  Megerlia 
  \_Kingena~\ 
  lima, 
  Defr. 
  

   (P), 
  Calliostoma 
  sp. 
  (P), 
  Catopygus 
  columbarius, 
  var., 
  Lam. 
  (P) 
  y 
  

   Galerites 
  vulgaris, 
  Breyn. 
  ?, 
  Holaster 
  planus, 
  Mant., 
  Trochosmilian 
  

   coral 
  (P), 
  Notidanus 
  microdon, 
  Ag., 
  Pleurotomaria 
  perspectiva, 
  

   Mant., 
  Ammonites 
  [Pacliy 
  discus] 
  Oriffithsii 
  (Sharpe), 
  and 
  P. 
  Old- 
  

   liami 
  (Sharpe), 
  P. 
  peramplus, 
  Mant., 
  Nautilus 
  Deslongcliamp- 
  

   sianus, 
  d'Orb., 
  iV. 
  Largilliertianus, 
  d'Orb., 
  N. 
  Atlas, 
  Whiteaves, 
  

   Baculites, 
  near 
  anceps, 
  Lam., 
  Hamites 
  sp., 
  Anisoceras 
  sp., 
  Ventri- 
  

   culites 
  sp., 
  Coeloptycliium 
  sp., 
  and 
  the 
  Kilcorig 
  fauna 
  (see 
  p. 
  546). 
  

  

  Tate 
  concludes 
  that 
  ' 
  the 
  White 
  Limestone 
  certainly 
  represents 
  

   the 
  Upper 
  Chalk 
  of 
  Norwich 
  and 
  the 
  Craie 
  de 
  Meudon, 
  and 
  some 
  

   of 
  its 
  fossils 
  point 
  even 
  to 
  a 
  higher 
  parallel 
  — 
  that 
  of 
  the 
  Maestricht 
  

   Chalk.' 
  Barrois 
  also 
  considers 
  that 
  these 
  beds 
  are 
  on 
  the 
  level 
  of 
  

   the 
  Norwich 
  Chalk, 
  but 
  sees 
  no 
  evidence 
  of 
  the 
  existence 
  of 
  Danian 
  

   beds 
  in 
  this 
  region. 
  

  

  It 
  is 
  clear 
  that 
  during 
  this 
  period 
  the 
  submergence 
  of 
  Antrim 
  

   must 
  have 
  been 
  very 
  complete, 
  the 
  whole 
  of 
  the 
  divisions 
  having 
  the 
  

   White 
  Chalk 
  of 
  this 
  zone 
  covering 
  the 
  older 
  deposits, 
  its 
  preserva- 
  

   tion 
  being 
  due 
  to 
  the 
  great 
  overlying 
  mass 
  of 
  basalt. 
  The 
  upper 
  

   part 
  is 
  very 
  unfossiliferous, 
  the 
  varied 
  fauna 
  above 
  described 
  being 
  

   mainly 
  developed 
  at 
  the 
  base, 
  though 
  a 
  small 
  group 
  of 
  forms 
  occurs 
  

   throughout 
  the 
  series. 
  The 
  basal 
  zone 
  is 
  a 
  giauconitic 
  chalk 
  in 
  

   most 
  of 
  the 
  Southern 
  and 
  parts 
  of 
  the 
  Central 
  and 
  Peninsular 
  

   districts; 
  in 
  the 
  others 
  it 
  is 
  a 
  pure 
  white 
  chalk, 
  the 
  chemical 
  results 
  

   showing 
  it 
  in 
  some 
  cases 
  to 
  be 
  as 
  pure 
  as 
  that 
  of 
  some 
  of 
  the 
  

   English 
  Upper 
  Chalk-zones. 
  

  

  The 
  following 
  are 
  the 
  main 
  stratigraphical 
  conclusions 
  : 
  — 
  

  

  1. 
  The 
  Giauconitic 
  Sands, 
  or 
  zone 
  of 
  Exogyra 
  conica, 
  corre- 
  

   spond 
  in 
  the 
  main 
  to 
  the 
  Devizes 
  beds 
  (zone 
  of 
  Ammonites 
  inflatus) 
  

   and 
  part 
  of 
  the 
  Warminster 
  Beds 
  (zone 
  of 
  Pecten 
  asper) 
  in 
  England. 
  

  

  2. 
  The 
  Yellow 
  Sandstones, 
  or 
  zone 
  of 
  Ostrea 
  carinata, 
  are 
  of 
  

   Warminster 
  age, 
  that 
  is, 
  the 
  Pecten 
  asper-zone 
  of 
  Barrois. 
  

  

  The 
  above 
  together 
  correspond 
  to 
  the 
  English 
  Upper 
  Greensand. 
  

  

  3. 
  TheChloritic 
  Sands 
  and 
  Sandstones 
  (Central 
  Division), 
  

   or 
  zone 
  of 
  Exogyra 
  columba, 
  are 
  true 
  shore-representatives 
  of 
  the 
  

   Cenomanian 
  (Lower 
  Chalk) 
  in 
  Ireland. 
  

  

  4. 
  The 
  ChloriticSands 
  (Eastern 
  Division) 
  = 
  zone 
  of 
  Inoceramus 
  

   Crispi 
  1 
  of 
  Tate, 
  are 
  equivalent 
  to 
  the 
  highest 
  Turonian 
  (Middle 
  

   Chalk) 
  or 
  lowest 
  Senonian 
  beds 
  in 
  England, 
  being 
  intimately 
  asso- 
  

   ciated 
  with 
  the 
  changes 
  which 
  resulted 
  in 
  the 
  formation 
  of 
  the 
  Chalk 
  

   Rock 
  in 
  England. 
  

  

  5. 
  The 
  Chloritic 
  Chalk 
  = 
  zone 
  of 
  Ediinocorys 
  gibbus 
  and 
  

  

  