﻿Io8 
  PROCEEDINGS 
  OE 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  

  

  Reptilia 
  2 
  genera 
  and 
  2 
  species. 
  

  

  Ammonites 
  .... 
  1 
  „ 
  6 
  ,, 
  

  

  Belemnites 
  .... 
  1 
  „ 
  1 
  „ 
  

  

  Gasteropoda 
  .... 
  6 
  „ 
  8 
  „ 
  

  

  Dimyaria 
  12 
  „ 
  16 
  „ 
  

  

  Monomyaria 
  ... 
  6 
  „ 
  10 
  „ 
  

  

  Brachiopoda 
  . 
  . 
  . 
  . 
  2 
  „ 
  2 
  ,, 
  

  

  Crustacea 
  1 
  „ 
  1 
  „ 
  

  

  31 
  46 
  

  

  Comparing 
  the 
  Lower 
  Kimmeridge 
  of 
  other 
  comities 
  with 
  this 
  typi- 
  

   cal 
  development 
  in 
  Lincolnshire, 
  Mr. 
  Blake 
  includes 
  also 
  the 
  whole 
  

   of 
  the 
  Middle 
  Kimmeridge 
  of 
  Filey 
  Bay 
  in 
  this 
  Lower 
  division. 
  He 
  

   regards 
  the 
  base 
  of 
  the 
  Ely 
  pit 
  as 
  Lower 
  Kimmeridge 
  on 
  account 
  

   of 
  its 
  contained 
  fossils, 
  such 
  as 
  Am. 
  serratus, 
  A. 
  longispinus, 
  Area 
  

   rJwmboidalis, 
  Astarte 
  ovata, 
  Serpida 
  tetragona, 
  Avicula 
  cedilignensis, 
  

   Pecten 
  Orenieri, 
  and 
  Lingula 
  ovedis. 
  Mr. 
  Blake 
  also 
  adds 
  a 
  list 
  of 
  

   16 
  genera 
  and 
  21 
  species 
  which 
  occur 
  in 
  the 
  Kimmeridge 
  Clay 
  of 
  

   Swindon. 
  This 
  is 
  the 
  first 
  time 
  any 
  notice 
  has 
  been 
  given 
  of 
  Kim- 
  

   meridge-clay 
  fossils 
  from 
  that 
  locality 
  ; 
  and 
  so 
  with 
  Wootton 
  Bassett 
  : 
  

   the 
  Lower 
  beds 
  there 
  yield 
  13 
  species, 
  all 
  Swindon 
  forms. 
  Near 
  

   "Weymouth 
  the 
  dark 
  clays 
  have 
  yielded 
  33 
  species 
  — 
  Reptilia 
  1 
  spe- 
  

   cies, 
  Pisces 
  2 
  genera 
  and 
  2 
  species, 
  Ammonites 
  3 
  species, 
  Gasteropoda 
  

   •1 
  genera 
  and 
  5 
  species, 
  Dimyaria 
  11 
  genera 
  and 
  14 
  species, 
  Mono- 
  

   myaria 
  6 
  genera 
  and 
  6 
  species, 
  Brachiopoda 
  2 
  genera 
  and 
  2 
  species. 
  

  

  The 
  Passage-beds 
  of 
  Blake 
  have 
  their 
  type-locality 
  at 
  Weymouth, 
  

   and 
  are 
  sandy 
  stratified 
  beds 
  extremely 
  rich 
  in 
  fossils. 
  They 
  appear 
  

   to 
  be, 
  according 
  to 
  Dr. 
  Waagen, 
  the 
  equivalent 
  in 
  part 
  of 
  Dollfus's 
  

   " 
  Calcaires 
  a 
  trigonies 
  " 
  of 
  the 
  Cap 
  de 
  la 
  Heve 
  ; 
  they 
  are 
  the 
  Kim- 
  

   meridge 
  Grit 
  of 
  Damon 
  ; 
  Waagen 
  also 
  includes 
  part 
  of 
  them 
  in 
  the 
  

   Upper 
  Calcareous 
  Grit. 
  

  

  Mr. 
  Blake 
  finds 
  no 
  indication 
  of 
  such 
  beds 
  where 
  the 
  Coral 
  Rag 
  is 
  

   absent, 
  as 
  in 
  Lincolnshire 
  ; 
  but 
  in 
  the 
  presence 
  of 
  that 
  formation 
  

   they 
  are 
  everywhere 
  developed. 
  This 
  would 
  incline 
  Mr. 
  Blake 
  

   to 
  attach 
  them 
  to 
  the 
  Coral 
  Bag 
  rather 
  than 
  to 
  the 
  Kimmeridge 
  

   Clay. 
  

  

  The 
  Sandsfoot-Castle 
  section 
  near 
  Weymouth 
  has 
  yielded 
  44 
  

   genera 
  and 
  63 
  species 
  from 
  two 
  thin 
  beds 
  ; 
  a 
  few 
  supplemental 
  

   forms 
  bring 
  the 
  list 
  up 
  to 
  72 
  species 
  : 
  29 
  are 
  peculiar 
  ; 
  13 
  are 
  

   common 
  to 
  it 
  and 
  the 
  Coral 
  Bag 
  ; 
  and 
  20 
  pass 
  up 
  into 
  the 
  Kim- 
  

   meridge 
  Clay 
  — 
  10 
  appearing 
  from 
  lower 
  beds, 
  including 
  probably 
  

   some 
  of 
  the 
  peculiar 
  forms. 
  The 
  same 
  conditions, 
  both 
  lithological 
  

   and 
  palaeontological, 
  are 
  repeated 
  at 
  Osmington 
  Mills 
  and 
  Ringstead 
  

   Bay. 
  

  

  Mr. 
  Blake, 
  in 
  concluding 
  his 
  able 
  paper, 
  recapitulates 
  the 
  main 
  

   points 
  at 
  which 
  he 
  had 
  arrived 
  ; 
  and 
  of 
  that 
  summary 
  the 
  following 
  

   is 
  an 
  abridgment 
  : 
  — 
  

  

  1. 
  The 
  Kimmeridge 
  Clay 
  in 
  England 
  is 
  divisible 
  into 
  two 
  sections, 
  

   Upper 
  and 
  Lower, 
  and, 
  when 
  preceded 
  by 
  the 
  Coral 
  Rag, 
  

   possesses 
  at 
  the 
  base 
  the 
  Kimmeridge 
  Passage-beds. 
  

  

  