﻿ANNIVERSARY 
  ADDRESS 
  OF 
  THE 
  PRESIDENT. 
  1 
  1 
  5 
  

  

  known 
  Chemnitzia-beda 
  (0. 
  heddingtonensis) 
  with 
  Nerinoea 
  Goodhalli, 
  

   Phasianella 
  striata, 
  Cerithium 
  muricatum, 
  Lima 
  Iceviuscula, 
  &c. 
  It 
  is 
  

   from 
  the 
  upper 
  part 
  of 
  this 
  division 
  (the 
  Coralline 
  Oolite) 
  that 
  the 
  

   new 
  and 
  remarkable 
  Araucarian 
  fruit 
  (cone), 
  Araucarites 
  Hudle- 
  

   stoni, 
  Oarr., 
  was 
  obtained. 
  Mr. 
  Carruthers, 
  F.R.S., 
  to 
  whom 
  this 
  

   cone 
  was 
  submitted, 
  places 
  it 
  in 
  the 
  section 
  Golymbea 
  of 
  the 
  genus 
  

   Araucaria, 
  now 
  represented 
  in 
  South 
  America, 
  Australia, 
  and 
  New 
  

   Caledonia. 
  The 
  Inferior-Oolite 
  form 
  {A. 
  sphcerocarpus) 
  and 
  the 
  

   Wealden 
  one 
  (A. 
  pippingfordensis) 
  belong 
  to 
  the 
  same 
  section 
  of 
  

   the 
  genus. 
  ( 
  Vide 
  Carruthers, 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xxxiii. 
  

   p. 
  402, 
  appendix 
  to 
  Messrs. 
  Blake 
  and 
  Hudleston's 
  paper.) 
  

  

  No 
  less 
  than 
  70 
  species 
  are 
  named 
  by 
  the 
  authors 
  in 
  the 
  list 
  of 
  

   fossils 
  from 
  the 
  Coralline 
  Oolite 
  of 
  Malton, 
  omitting 
  those 
  species 
  

   occurring 
  in 
  the 
  Coral 
  Rag 
  proper. 
  Very 
  few 
  forms 
  are 
  common 
  to 
  

   the 
  Coralline 
  Oolite 
  and 
  the 
  true 
  Coral 
  Rag 
  above 
  ; 
  out 
  of 
  the 
  70 
  

   named 
  not 
  more 
  than 
  10 
  occur 
  to 
  connect 
  the 
  two 
  horizons. 
  The 
  

   Coral 
  Rag 
  proper, 
  which 
  overlies 
  the 
  Coralline 
  Oolite, 
  is 
  essentially 
  

   characterized 
  by 
  Cidaris 
  florigemma, 
  Glypticus 
  Tiieroglyphicus,Pseudo- 
  

   diadema 
  hemisphcericum, 
  Thecosmilice, 
  Rhabdophyllice, 
  &c. 
  About 
  

   50 
  species 
  range 
  through 
  the 
  Coral 
  Rag 
  series 
  of 
  the 
  Howardian 
  

   beds 
  west 
  of 
  the 
  Derwent. 
  

  

  East 
  of 
  the 
  Derwent. 
  — 
  This 
  division 
  occupies 
  the 
  high 
  land 
  of 
  

   Langton 
  Wold, 
  at 
  the 
  southern 
  ridge 
  of 
  which 
  the 
  Howardians 
  

   are 
  buried 
  beneath 
  the 
  Chalk. 
  Messrs. 
  Blake 
  and 
  Hudleston 
  state 
  

   with 
  truth 
  that 
  " 
  there 
  is 
  no 
  such 
  display 
  of 
  Coral 
  Rag 
  elsewhere 
  in 
  

   England 
  as 
  at 
  North-Grimston 
  Hill, 
  where 
  " 
  the 
  Coral 
  Rag 
  may 
  be 
  

   said 
  to 
  culminate 
  both 
  as 
  to 
  variety 
  and 
  thickness 
  of 
  development, 
  

   and 
  also 
  in 
  the 
  richness 
  of 
  its 
  fossil 
  contents" 
  (loc. 
  cit. 
  p. 
  374). 
  

   The 
  authors 
  give 
  details 
  of 
  the 
  Grimston-Hill 
  section 
  from 
  the 
  base 
  

   with 
  Lower 
  Calcareous 
  Grit, 
  through 
  the 
  Coralline 
  Oolite 
  and 
  Pas- 
  

   sage-beds, 
  the 
  Coral 
  Rag, 
  and 
  Supracoralline 
  series 
  (vide 
  described 
  

   and 
  drawn 
  section, 
  pp. 
  374-381). 
  The 
  Mamillated-TJrchin 
  series 
  (in 
  

   the 
  Coral 
  Rag), 
  containing 
  Echinobrissus 
  scutatus, 
  Pseudodiadema 
  

   hemisphcericum, 
  Cidaris 
  florigemma, 
  C. 
  Smithii, 
  Hemicidaris 
  inter- 
  

   media, 
  Colly 
  'rites 
  bicordatus, 
  Pygaster 
  umbrella, 
  &c. 
  &c, 
  receives 
  care- 
  

   ful 
  stratigraphical 
  determination. 
  The 
  geographical 
  position 
  of 
  these 
  

   Urchin-beds 
  would 
  appear 
  to 
  be 
  restricted 
  along 
  the 
  southern 
  margin 
  

   of 
  the 
  formation, 
  where 
  lithologically 
  the 
  beds 
  are 
  highly 
  argillaceous 
  

   and 
  fine-grained. 
  The 
  North-Grimston 
  Limestone 
  (Coral 
  Rag 
  

   proper) 
  and 
  its 
  splendid 
  group 
  of 
  fossils 
  are 
  minutely 
  described 
  ; 
  

   and 
  Messrs. 
  Blake 
  and 
  Hudleston 
  append 
  a 
  remarkable 
  list 
  of 
  the 
  

   Langton-Grimston-Rag 
  or 
  Upper- 
  Corallian 
  fossils, 
  in 
  which 
  are 
  

   enumerated 
  70 
  species 
  : 
  20 
  of 
  these 
  are 
  Gasteropoda, 
  34 
  Lamelli- 
  

   branchs, 
  6 
  Cephalopoda, 
  7 
  Echinoidea, 
  &c. 
  Few 
  corals 
  are 
  given, 
  

   Thecosmilia 
  and 
  Rhabdophyllia 
  are 
  the 
  most 
  frequent. 
  

  

  The 
  authors 
  then 
  summarize 
  the 
  work 
  done 
  by 
  them. 
  The 
  Wey- 
  

   mouth 
  area 
  is 
  epitomized 
  in 
  ascending 
  order, 
  the 
  Nothe 
  Grits 
  

   (characterized 
  by 
  Perna 
  quadrata 
  and 
  Pecten 
  fibrosus) 
  being 
  at 
  the 
  

   base. 
  Clays 
  (the 
  " 
  Nothe 
  Clays 
  ") 
  separate 
  the 
  above 
  from 
  an 
  upper 
  

   grit 
  (the 
  " 
  Bencliff 
  Grit 
  ") 
  having 
  at 
  its 
  base 
  huge 
  doggers; 
  these 
  two 
  

  

  Jc2 
  

  

  