Uol.  4g._ 
CESTBA mOHT-BEMAIXS  IX  THE  UPPER  EEUPER. 
171 
12.  On  some  Additional  Rrmatxs  of  Cestracioxt  and  other  Pishes 
in  the  Green  gritty  Marls,  immediately  overlying  the  Peed 
Marls  of  the  Upper  Keeper  in  Warwickshire.  By  the  Pev. 
P.  B.  Brodie.  M.A..  P.G.S.  (Head  December  21st,  1892.) 
So  brief  a  notice  on  so  limited  a  subject  may  seem  hardly  worthy 
of  the  Geological  Society,  but  as  a  supplement  to  my  former  paper 
published  in  this  -Journal  in  1867 1  on  the  section  and  fossils  from 
the  Upper  Keuper  Sandstone  at  Shrewley.  three  miles  north-west  of 
TU arwic-k,  it  may  perhaps  be  acceptable. 
Immediately  below  the  lowest  bed  of  rock,  the  best  and  thickest 
of  the  sandstones,  about  9  feet  of  grey  and  green,  coarse,  sandy  marls 
succeed,  resting  on  red  marls.  In  these  green  marls  no  fossils  had 
been  hitherto  found,  except  the  tests  of  Esduria  minuta.  often  in 
good  preservation :  but  I  have  now  to  record  the  discovery  of  nume¬ 
rous  large  and  small  spines  <  ichthyodorulites  of  cestracionts,  besides 
palatal  teeth  of  Acrodus  hevjjei'inas.  which  are  abundant,  ganoid 
fish-scales,  and  many  broken  bones,  including  a  fragment  of  a 
cranial  bone,  some  of  which  mav  belong  to  fishes  and  others  to 
labyrinthodonts.  These  occur  in  a  very  thin  band  of  marly,  friable, 
gritty  sandstone,  full  of  many  small  rolled  pieces  of  grit,2  lying 
between  two  beds  of  green  marl  :  but  at  a  little  distance  east  the 
same  bed  is  a  green  marl  without  any  intermixture  of  sand,  con¬ 
taining  similar  fossils. 
The  entire  length  of  the  section  exposed  is  115  yards :  the  green 
marls  predominate,  but  alternate  with  six  thin  layers  of  sandstone,  a 
thicker  one  coming  just  below  the  4  bottom-rock/  The  total  thick¬ 
ness  of  these  strata,  between  the  latter  and  the  underlying  red 
marls,  is  about  8  or  10  feet :  while  the  Ichthyodorulite-bed  does  not 
exceed  2  inches,  and  is  10  inches  above  the  red  marls,  though  not 
so  thick  at  the  eastern  end  near  the  tunnel.  Towards  the  middle  of 
the  section  it  does  not  exceed  1  inch,  and  is  replaced  by  green  marl 
with  bones  of  fishes,  but  without  any  admixture  of  gritty  particles. 
The  indurated  green  and  red  marls  have  a  somewhat  irregular 
surface,  and,  including  the  overhung  sandstones,  have  a  slight 
easterly  dip.  In  the  fossilif'erous  gritty  marl,  bones  and  teeth  are 
so  numerous  that  it  might  almost  be  called  a  bone-bed  ;  it  does  not 
exceed  3  inches  in  thickness.  It  extends  across  the  canal,  and 
no  doubt  could  be  traced  farther  northward  beneath  the  sandstones. 
It  is  impossible  to  obtain  anv  large  slabs,  or  indeed  any  considerable 
quantity  of  pieces,  otherwise  many  more  interesting  organisms 
(probably  in  better  preservation j  might  be  found.  Unfortunately, 
3  Tol.  xliii.  p.  540. 
2  I  forwarded  some  of  these  rolled  fragments  to  my  friend.  Prof.  Rupert 
J  ones.  P.R.S..  who  reports  that,  although  some  of  them  are  not  unlike  Entom- 
ostraca,  he  could  not  positively  affirm  that  they  were  identical,  and  they  rather 
appear  to  be  rolled  relics  of  some  organism,  such  as  shell-  or  test-fragments, 
or  perhaps  in  one  or  two  cases  crinoid-ossic-les :  while  the  smooth,  shining 
particles  of  grit  seem  as  if  they  had  come  from  windwom  sandbanks  into 
shallow  water. 
