﻿ANNIVERSARY 
  ADDRESS 
  OP 
  THE 
  PRESIDENT. 
  73 
  

  

  almost 
  in 
  the 
  same 
  number 
  and 
  species. 
  The 
  zone 
  of 
  Ammonites 
  

   perarmatus 
  and 
  the 
  Oolitic 
  series 
  are 
  succeeded 
  by 
  the 
  sandstones 
  of 
  

   the 
  group 
  Cordati, 
  also 
  associated 
  with 
  species 
  of 
  the 
  Armati 
  and 
  

   Planulati; 
  they 
  are 
  succeeded 
  by 
  the 
  Clynlish 
  and 
  Hare-Hill 
  or 
  

   Braamberry-Hill 
  white 
  sandstones, 
  which 
  have 
  yielded 
  a 
  large 
  fauna 
  

   (40 
  genera 
  and 
  67 
  species) 
  : 
  — 
  

  

  Belemnites 
  1 
  genus 
  and 
  2 
  species. 
  

  

  Ammonites 
  1 
  ,, 
  11 
  

  

  Grasteropoda 
  .... 
  5 
  „ 
  5 
  

  

  Dimyaria 
  15 
  „ 
  19 
  

  

  Monomyaria 
  12 
  „ 
  23 
  

  

  Brachiopoda 
  .... 
  2 
  ,, 
  2 
  

  

  Echinoidea 
  1 
  „ 
  1 
  

  

  Plantee 
  3 
  „ 
  4 
  

  

  40 
  67 
  

  

  The 
  remarkable 
  group 
  of 
  Cycads, 
  Bucklandia 
  Milleriana, 
  Yatesia 
  

   Joassiana 
  and 
  Y. 
  crassa 
  mark 
  an 
  epoch 
  in 
  the 
  flora 
  of 
  the 
  Middle 
  

   Oolites. 
  The 
  Ammonites 
  all 
  differ 
  from 
  those 
  of 
  the 
  zone 
  of 
  Omati 
  ; 
  

   but 
  numerically 
  they 
  are 
  much 
  the 
  same. 
  

  

  Coralline 
  Oolite. 
  — 
  On 
  the 
  left 
  bank 
  of 
  the 
  Brora 
  and 
  at 
  Ardassie 
  

   Point 
  a 
  characteristic 
  fauna 
  occurs, 
  the 
  Cordati 
  amongst 
  the 
  Ammo- 
  

   nites 
  being 
  the 
  only 
  group 
  present. 
  At 
  both 
  points 
  the 
  fossils 
  are 
  

   the 
  same 
  ; 
  24 
  genera 
  and 
  42 
  species 
  occur 
  in 
  the 
  argillaceous 
  lime- 
  

   stones 
  of 
  the 
  Brora, 
  and 
  26 
  genera 
  and 
  42 
  species 
  at 
  Ardassie. 
  

  

  The 
  faunas 
  of 
  the 
  various 
  limestones 
  and 
  clays 
  leave 
  no 
  doubt 
  as 
  

   to 
  their 
  age 
  or 
  true 
  geological 
  horizon 
  ; 
  it 
  is 
  unmistakably 
  that 
  of 
  

   the 
  Coralline 
  Oolite 
  of 
  England. 
  Mr. 
  Judd 
  estimates 
  that 
  the 
  

   Middle-Oolite 
  series 
  of 
  Sutherland 
  attains 
  a 
  thickness 
  of 
  nearly 
  

   900 
  feet, 
  about 
  one 
  half 
  of 
  which 
  is 
  made 
  up 
  of 
  marine, 
  and 
  the 
  other 
  

   half 
  of 
  estuarine 
  strata 
  (loc. 
  cit. 
  p. 
  176). 
  

  

  The 
  Upper 
  Oolite. 
  — 
  This 
  is 
  for 
  the 
  first 
  time 
  recognized 
  in 
  the 
  

   northern 
  part 
  of 
  the 
  British 
  Islands, 
  and 
  represented 
  by 
  a 
  great 
  

   series 
  of 
  shales, 
  sandstones, 
  and 
  grits, 
  nearly 
  1000 
  feet 
  thick. 
  The 
  

   fauna 
  belongs 
  unquestionably 
  to 
  the 
  Upper 
  Oolite. 
  The 
  marine 
  

   sandstones 
  of 
  "Alt-na-Cuil 
  " 
  have 
  yielded 
  17 
  genera 
  and 
  28 
  species. 
  

   The 
  Upper 
  Oolite 
  series 
  has 
  yielded 
  a 
  large 
  and 
  beautiful 
  flora 
  of 
  

   Cycadeas, 
  Coniferae, 
  Filiceae, 
  &c* 
  

  

  Mr. 
  Judd's 
  list 
  of 
  fossils 
  from 
  the 
  limestones, 
  grits, 
  and 
  shales 
  of 
  

   the 
  Upper 
  Oolite 
  of 
  Sutherland 
  represents 
  a 
  copious 
  and 
  important 
  

   fauna, 
  numbering 
  36 
  genera 
  and 
  61 
  species 
  : 
  — 
  

  

  * 
  First 
  noticed 
  by 
  Hugh 
  Miller, 
  ' 
  Testimony 
  of 
  the 
  Rocks' 
  (vide 
  the 
  last 
  two 
  

   chapters). 
  

  

  