﻿COTTESWOLD, 
  MIDFORD, 
  AND 
  YEOVIL 
  SANDS, 
  ETC. 
  

  

  443 
  

  

  possible 
  to 
  compare 
  the 
  strata 
  of 
  the 
  different 
  localities 
  therewith, 
  

   to 
  see 
  if 
  they 
  fall 
  contemporaneously, 
  or 
  above 
  or 
  below 
  the 
  fixed 
  

   horizon. 
  

  

  The 
  series 
  selected 
  is 
  that 
  of 
  the 
  Striatulum-be&s, 
  which 
  are 
  trace- 
  

   able 
  in 
  the 
  Cotteswold, 
  Midford, 
  and 
  Dorset-Somerset* 
  districts. 
  In 
  

   the 
  following 
  sections 
  the 
  top 
  of 
  the 
  Striatulum-be&s 
  is 
  the 
  point 
  

   from 
  which 
  one 
  section 
  should 
  be 
  compared 
  with 
  another. 
  

  

  Frocester 
  Hill 
  is 
  almost 
  the 
  northernmost 
  point 
  at 
  which 
  the 
  

   Striatulum-beds 
  appear 
  ; 
  at 
  Haresfield 
  Beacon 
  they 
  are 
  practically 
  

   absent, 
  and 
  at 
  Leckhampton 
  only 
  the 
  very 
  top 
  of 
  the 
  Cephalopoda- 
  

   bed 
  is 
  seen 
  resting 
  on 
  sands. 
  The 
  following 
  section, 
  taken 
  at 
  

   Buckholt 
  Wood, 
  which 
  is 
  a 
  short 
  distance 
  north 
  of 
  the 
  well-known 
  

   Erocester-Hill 
  section, 
  gives 
  the 
  Cephalopoda-bed 
  (the 
  Limestone 
  

   capping 
  of 
  the 
  Cotteswold 
  Sands) 
  in 
  fairly 
  full 
  development. 
  

  

  Cephalopoda- 
  

   bed. 
  

  

  Cotteswold 
  

   Sands. 
  

  

  Moorei-be&s. 
  

  

  I. 
  Section 
  at 
  Buckholt 
  Wood. 
  

  

  Btimortieria- 
  

   beds. 
  

  

  beds. 
  

  

  Striatulum- 
  

   beds. 
  

  

  Variabilis- 
  

   beds. 
  

  

  ft. 
  in. 
  

  

  1. 
  Brownish 
  limestone 
  with 
  darker 
  brown 
  grains. 
  

   Dumortieria 
  Moorei 
  (Lyeett) 
  ; 
  Bum. 
  subundulata 
  

   (Branco) 
  ; 
  Bum. 
  sparsicosta, 
  Haug 
  ; 
  Grammo- 
  

   ceras 
  mactra 
  (Duinortier) 
  ; 
  Bhynch. 
  cyno- 
  

   cephala 
  ; 
  Terebratula 
  haresjieldensis 
  ; 
  Belem- 
  

  

  nites 
  1 
  9 
  

  

  2. 
  Yellowish 
  ; 
  but 
  more 
  often 
  dark 
  grey, 
  almost 
  

  

  black 
  mudstone 
  with 
  dark 
  brown 
  grains. 
  

   Ammonites 
  scarce 
  and 
  badly 
  preserved. 
  Bum. 
  

   rhodanica, 
  Haug 
  ; 
  Bh. 
  cynocephala 
  ; 
  Terebr. 
  

   haresjieldensis 
  2 
  

  

  3. 
  Bed 
  dish 
  -yellow, 
  somewhat 
  sticky, 
  gritty 
  marl 
  ; 
  

  

  in 
  places 
  numerous 
  Belemnites 
  6 
  

  

  4. 
  Dark 
  grey, 
  ironshot, 
  soft 
  stone 
  breaking 
  up 
  into 
  

  

  shales. 
  Gramm. 
  dispansum, 
  Hamm. 
  insigne, 
  

   Astarte, 
  sp 
  1 
  

  

  5. 
  Marl 
  2 
  

  

  6. 
  Light 
  yellow, 
  soft 
  stone. 
  Dumortieria 
  rho- 
  

  

  danica 
  ? 
  Gramm. 
  dcerntense 
  (Denckmann), 
  

   Gramm,. 
  striatulum 
  (Sowerby) 
  9 
  

  

  7. 
  Brownish 
  marl, 
  numerous 
  dark 
  brown 
  grains. 
  

  

  Grammoceras, 
  sp., 
  involute 
  7 
  

  

  8. 
  Yellowish 
  stone 
  with 
  brown 
  grains. 
  Gramm. 
  

  

  striatulum 
  abundant, 
  Haugia 
  Eseri 
  6 
  

  

  This 
  bed 
  lies 
  above 
  and 
  fills 
  the 
  interstices 
  of 
  the 
  

   very 
  uneven-topped 
  

  

  9. 
  Hard, 
  blue-hearted 
  sandstone 
  1 
  3 
  

  

  10. 
  Yellow 
  micaceous 
  sands 
  

  

  This 
  section 
  does 
  not 
  exhibit 
  the 
  Cotteswold 
  Sands, 
  and 
  in 
  order 
  

   to 
  obtain 
  an 
  exposure 
  of 
  them 
  we 
  must 
  go 
  to 
  Coaley 
  Wood 
  ; 
  but 
  it 
  

   displays 
  certain 
  features 
  connected 
  with 
  the 
  Cephalopoda-bed 
  in 
  a 
  

   better 
  manner 
  than 
  Coaley. 
  The 
  following 
  Section 
  has 
  already 
  

   appeared 
  in 
  my 
  monograph 
  on 
  Inferior 
  Oolite 
  Ammonites 
  (Pal. 
  Soc. 
  

   1887, 
  p. 
  45) 
  ; 
  but 
  it 
  is 
  here 
  reproduced 
  with 
  some 
  additions 
  and 
  

   alterations. 
  

  

  * 
  The 
  district 
  south 
  of 
  the 
  Mendips 
  is 
  thus 
  designated. 
  

  

  