﻿ANNIVERSARY 
  ADDRESS 
  OF 
  THE 
  PRESIDENT. 
  95 
  

  

  bed, 
  nearly 
  every 
  species 
  in 
  which 
  was 
  named 
  and 
  catalogued 
  in 
  

   Mr. 
  Sharp's 
  collection 
  by 
  myself. 
  The 
  whole 
  series 
  in 
  Mr. 
  Sharp's 
  

   collection 
  clearly 
  determined 
  the 
  horizon 
  to 
  which 
  they 
  belong. 
  

  

  Plantae 
  1 
  species. 
  

  

  Ccelenterata 
  none. 
  

  

  Asteroidea 
  1 
  „ 
  

  

  Echinoidea 
  1 
  „ 
  

  

  Annelida 
  2 
  „ 
  

  

  Crustacea 
  none. 
  

  

  Bryozoa 
  none. 
  

  

  Brachiopoda 
  none. 
  

  

  Monomyaria 
  14 
  „ 
  

  

  Dimyaria 
  22 
  „ 
  

  

  Gasteropoda 
  ........ 
  4 
  „ 
  

  

  Belemnites 
  1 
  ,, 
  

  

  Ammonites 
  none. 
  

  

  Nautilus 
  1 
  „ 
  

  

  47 
  

  

  The 
  Lincolnshire 
  Limestone, 
  formerly 
  believed 
  to 
  be 
  the 
  equivalent 
  

   of 
  the 
  Great 
  or 
  Bath 
  Oolite, 
  is 
  now, 
  od 
  undoubted 
  stratigraphi- 
  

   cal 
  and 
  palaeontographical 
  evidence, 
  known 
  to 
  be 
  true 
  " 
  Inferior 
  

   Oolite." 
  In 
  almost 
  every 
  locality 
  where 
  the 
  beds 
  are 
  exposed, 
  they 
  

   exhibit 
  different 
  characters. 
  Under 
  two 
  facies 
  or 
  " 
  aspects," 
  how- 
  

   ever, 
  the 
  formation 
  is 
  specially 
  recognized 
  ; 
  and 
  Prof. 
  Judd 
  has 
  

   designated 
  them 
  the 
  " 
  coralline 
  facies 
  " 
  and 
  the 
  " 
  shelly 
  facies." 
  

   Compact 
  subcrystalline 
  argillaceous 
  limestones, 
  slightly 
  oolitic 
  in 
  tex- 
  

   ture 
  and 
  abounding, 
  in 
  corals, 
  characterize 
  the 
  first 
  or 
  "coralline" 
  

   beds, 
  which 
  yield 
  Thamnastrcea, 
  Montlivaltia, 
  Isastrcea, 
  Latimce- 
  

   andra, 
  &c. 
  

  

  An 
  abundant 
  molluscan 
  fauna 
  accompanies 
  these 
  corals, 
  especially 
  

   Nerinwm. 
  The 
  well-known 
  Natica 
  cincta 
  [N. 
  lec7champtonensis~], 
  

   Pholadomya 
  fidicula, 
  P. 
  ITeraulti, 
  Ceromya 
  bajociana, 
  Pinna 
  cuneata, 
  

   Modiola 
  Sowerbyana 
  [M. 
  plicatci], 
  &c. 
  abound. 
  

  

  The 
  second 
  type, 
  or 
  " 
  shelly 
  facies 
  " 
  is 
  composed 
  chiefly 
  of 
  com- 
  

   minuted, 
  waterworn 
  fragments 
  of 
  shells, 
  broken 
  and 
  eroded. 
  These 
  

   dead-shell 
  beds 
  or 
  banks 
  were 
  accumulated 
  under 
  the 
  influence 
  of 
  

   varying 
  currents. 
  They 
  contain 
  Cerithium, 
  Trochus, 
  Turbo, 
  Astarte, 
  

   Ostrea, 
  Lima, 
  Trigonia, 
  Terebratula, 
  &c, 
  and 
  remains 
  of 
  Echinoder- 
  

   mata. 
  It 
  will 
  also 
  be 
  seen 
  by 
  the 
  tabular 
  analysis 
  of 
  the 
  fauna 
  that 
  

   there 
  is 
  an 
  almost 
  total 
  absence 
  of 
  the 
  Cephalopoda 
  ; 
  there 
  are 
  two 
  

   or 
  three 
  species 
  of 
  Belemnites 
  and 
  Nautili 
  ; 
  and 
  the 
  Ammonites 
  are 
  

   reduced 
  to 
  four 
  or 
  five 
  species. 
  Bel. 
  acutus, 
  B. 
  Bla.invillii, 
  and 
  B* 
  

   canaliculatus, 
  with 
  Nautilus 
  obesus, 
  N. 
  polyc/onalis 
  and 
  the 
  four 
  Am- 
  

   monites, 
  A. 
  Blarjdeni 
  (rare), 
  A. 
  Murchisonaz, 
  var., 
  A. 
  subradiatus, 
  and 
  

   A. 
  terebratus, 
  constitute 
  all 
  the 
  Cephalopoda 
  yet 
  known 
  to 
  occur 
  in 
  

   the 
  Lincolnshire 
  Limestone. 
  

  

  The 
  freestone 
  beds 
  of 
  the 
  south-west 
  of 
  England 
  exhibit 
  the 
  same 
  

  

  