﻿•>■) 
  

  

  64 
  PROCEEDINGS 
  OF 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  

  

  Limestone 
  in 
  eleven 
  localities 
  is 
  expressed 
  in 
  the 
  following 
  analysis, 
  

   showing 
  the 
  occurrences 
  : 
  — 
  

  

  Morcot 
  21 
  genera 
  and 
  31 
  species. 
  

  

  Ketton 
  18 
  „ 
  26 
  „ 
  

  

  Denton 
  26 
  „ 
  47 
  „ 
  

  

  Glendon 
  22 
  „ 
  29 
  „ 
  

  

  Tinkler's 
  quarry 
  44 
  „ 
  87 
  „ 
  

  

  Beds 
  above 
  slates 
  19 
  „ 
  22 
  „ 
  

  

  Ponton 
  54 
  „ 
  139 
  

  

  Preestone 
  bed, 
  Simpson's 
  quarry 
  . 
  . 
  13 
  „ 
  17 
  

  

  South 
  of 
  the 
  JSTene 
  45 
  „ 
  104 
  „ 
  

  

  Barnack 
  Pag 
  57 
  „ 
  138 
  „ 
  

  

  Stamford 
  Stone 
  37 
  „ 
  80 
  „ 
  

  

  356 
  720 
  

  

  Adding 
  the 
  Collyweston 
  Slates 
  which 
  occur 
  immediately 
  below 
  the 
  

   true 
  Lincolnshire 
  Limestones, 
  and 
  which 
  contain 
  25 
  genera 
  and 
  bb 
  

   species, 
  the 
  assumed 
  faunal 
  occurrences 
  — 
  allowing 
  for 
  discrepancies 
  — 
  

   are 
  381 
  genera 
  and 
  775 
  species, 
  which 
  have 
  been 
  registered 
  chiefly 
  

   through 
  the 
  researches 
  of 
  Mr. 
  S. 
  Sharp, 
  then 
  of 
  Dallington 
  Hall, 
  

   near 
  Northampton. 
  To 
  show 
  the 
  paucity 
  of 
  species 
  in 
  certain 
  classes 
  

   and 
  their 
  abundance 
  in 
  others, 
  I 
  have 
  constructed 
  the 
  following 
  

   Table 
  (I.), 
  showing 
  their 
  distribution 
  over 
  the 
  same 
  geographical 
  

   area 
  above-mentioned. 
  It 
  clearly 
  exhibits 
  the 
  faunal 
  value 
  of 
  the 
  

   Lincolnshire 
  Limestone 
  ; 
  and 
  if 
  a 
  similar 
  Table 
  could 
  be 
  compiled 
  

   for 
  the 
  Jurassic 
  rocks 
  of 
  the 
  Midland 
  counties, 
  and 
  compared 
  with 
  

   those 
  of 
  the 
  north 
  and 
  south, 
  it 
  would 
  probably 
  throw 
  much 
  light 
  

   upon 
  the 
  physical 
  history 
  of 
  the 
  Jurassic 
  rocks 
  for 
  the 
  north 
  and 
  

   south 
  and 
  middle 
  of 
  England. 
  

  

  

  