﻿180 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  of 
  the 
  hill 
  east 
  of 
  Houston 
  Corners. 
  This 
  section 
  is 
  shown 
  in 
  

   the 
  following 
  diagram. 
  

  

  78(y 
  

  

  42(y 
  

  

  0' 
  

  

  360 
  / 
  

  

  420' 
  

  

  XXIX 
  X 
  

  

  Coarse 
  greenish 
  sandstone 
  near 
  top 
  of 
  hill 
  1 
  

  

  Large 
  numbers 
  of 
  loose 
  blocks 
  of 
  red 
  sandstone 
  

   Greenish 
  sandstone 
  

  

  >X 
  ; 
  

  

  185 
  1 
  Highway. 
  X 
  2 
  covered 
  

   X 
  1 
  Blue 
  shales 
  and 
  sandstones 
  

   - 
  Keyser's 
  creek, 
  110 
  feet 
  above 
  Houston 
  Corners 
  

  

  XXIX 
  M. 
  Aboye 
  Keyser's 
  creek, 
  a 
  smaller 
  stream 
  than 
  it 
  enters 
  

   the 
  Schoharie 
  river 
  at 
  Breakabeen. 
  A 
  section 
  was 
  examined 
  

   along 
  this 
  stream 
  from 
  east 
  of 
  south 
  of 
  Breakabeen 
  to 
  the 
  high 
  

   land 
  near 
  its 
  source 
  in 
  the 
  northern 
  part 
  of 
  Gilboa 
  township. 
  

   200 
  feet 
  above 
  the 
  Schoharie 
  river 
  are 
  bluish 
  shales 
  (M 
  2 
  ) 
  clearly 
  

   enough 
  in 
  the 
  Hamilton 
  formation, 
  containing 
  plenty 
  of 
  Hamil- 
  

   ton 
  fossils 
  and 
  the 
  following 
  species 
  were 
  collected: 
  

  

  1 
  Camarotoechia 
  prolifica 
  Hall 
  (c) 
  

  

  2 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  (rr) 
  

  

  3 
  Niwula 
  bellistriata 
  (Con.) 
  Hall 
  (rr) 
  

  

  4 
  Grammysia 
  arcuata 
  (Con.) 
  Hall 
  (rr) 
  

  

  5 
  Homalonotas 
  dekayi 
  (Green) 
  Emm. 
  (rr) 
  

  

  6 
  Tentaculites 
  bellulus 
  Hall 
  (?) 
  • 
  (rr) 
  

  

  Then 
  there 
  is 
  a 
  long 
  slope 
  deeply 
  covered 
  by 
  drift 
  and 
  the 
  

   next 
  outcrop, 
  consisting 
  of 
  coarse 
  grained 
  grayish 
  sandstones 
  (M 
  4 
  ) 
  

   which 
  split 
  into 
  thin 
  layers 
  is 
  540 
  feet 
  above 
  M 
  2 
  . 
  The 
  only 
  

   fossils 
  seen 
  were 
  fragments 
  of 
  plant 
  stems 
  and 
  the 
  outcrop 
  is 
  

   well 
  toward 
  the 
  head 
  of 
  the 
  small 
  valley. 
  100 
  feet 
  higher, 
  how- 
  

  

  