﻿Report 
  of 
  the 
  State 
  Geologist. 
  737 
  

  

  river 
  is 
  an 
  old 
  quarry 
  opened, 
  as 
  I 
  am 
  informed, 
  some 
  sixty 
  

   years 
  ago 
  to 
  obtain 
  an 
  eighteen-inch 
  sandstone 
  which 
  here 
  

   forms 
  the 
  base 
  of 
  the 
  exposure. 
  This 
  is 
  overlaid 
  by 
  thirteen 
  

   feet 
  of 
  sandy 
  shales 
  containing 
  in 
  places 
  Atrypa 
  reticularis, 
  the 
  

   large 
  and 
  robust 
  form 
  characteristic 
  of 
  the 
  Chemung 
  beds, 
  and 
  

   Spirifer 
  mucronatus 
  var. 
  posterns. 
  A 
  short 
  distance 
  further 
  up 
  

   is 
  another 
  exposure 
  of 
  greenish 
  shales 
  which 
  are 
  softer 
  and 
  more 
  

  

  Nation 
  Y\ 
  ;- 
  Tuffanci 
  HUi 
  

   Greeue 
  

  

  Scale 
  ;_ 
  

  

  vertical 
  J 
  1 
  lu 
  = 
  80 
  ft. 
  

  

  argillaceous 
  than 
  those 
  below, 
  and 
  these 
  are 
  continued 
  in 
  slight 
  

   field 
  exposures 
  to 
  the 
  top 
  of 
  the 
  hill, 
  whose 
  summit 
  is 
  approx- 
  

   imately 
  300 
  feet 
  above 
  the 
  river. 
  Fossils 
  are 
  abundant 
  through- 
  

   out 
  these 
  shales 
  and 
  are 
  of 
  typical 
  Chemung 
  expression, 
  viz. 
  : 
  

  

  Atrypa 
  reticularis, 
  large, 
  rugose 
  ; 
  common. 
  

  

  Orthis 
  impressa) 
  large 
  form 
  ; 
  abundant. 
  

  

  Liorhynchus 
  globuliformis, 
  common. 
  

  

  Spirifer 
  mesacostalis. 
  

  

  Productella 
  lachrymosa. 
  

  

  Stropheodonta 
  perplana 
  var. 
  nervosa. 
  

  

  Cryptonella 
  sp. 
  

  

  No 
  attempt 
  was 
  made 
  to 
  acquire 
  a 
  full 
  representation 
  of 
  

   the 
  species 
  occurring 
  here 
  and 
  at 
  the 
  outcrops 
  above. 
  

   There 
  is 
  apparently 
  little 
  variation 
  in 
  the 
  fauna 
  at 
  the 
  

   different 
  horizons 
  from 
  here 
  to 
  the 
  summit, 
  though 
  at 
  the 
  

   summit 
  is 
  a 
  layer 
  containing 
  very 
  abundantly 
  the 
  small 
  

   finely 
  plicated 
  form 
  of 
  Atrypa 
  reticularis. 
  On 
  the 
  east 
  slope 
  of 
  

  

  