﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  173 
  

  

  3 
  Camarotoechia 
  prolifica 
  (Hall) 
  H. 
  & 
  C. 
  (a) 
  

  

  Abundant 
  in 
  same 
  layer 
  as 
  above. 
  

  

  4 
  Spirifer 
  mucronatus 
  (Con.) 
  Bill. 
  ( 
  rr 
  ) 
  

  

  5 
  Nyassa 
  arguta 
  Hall 
  ( 
  aa 
  ) 
  

  

  6 
  Paracyclas 
  lirata 
  (Con.) 
  Hall 
  (rr) 
  

  

  7 
  Goniophora 
  hamiltonensis 
  (Hall) 
  Miller 
  (rr) 
  

  

  8 
  Pt&rinea 
  flabella 
  (Con.) 
  Hall 
  (rr) 
  

  

  9 
  Liopteria 
  bigsbyi 
  Hall 
  (rr) 
  

   10 
  Cyrtolites 
  (Cyrtonella) 
  mitella 
  Hall 
  (rr) 
  

   By 
  the 
  roadside 
  240 
  feet 
  higher 
  and 
  995 
  feet 
  above 
  the 
  Scho- 
  

   harie 
  river 
  are 
  thin, 
  greenish, 
  argillaceous 
  shales 
  and 
  some 
  that 
  

   are 
  arenaceous 
  (C 
  7 
  ). 
  These 
  shales 
  are 
  referred 
  to 
  the 
  Sherburne 
  

   formation 
  which 
  they 
  closely 
  resemble 
  in 
  lithologic 
  appearance. 
  

   For 
  the 
  succeeding 
  125 
  feet 
  the 
  rocks 
  are 
  well 
  covered 
  though 
  

   there 
  is 
  an 
  occasional 
  outcrop 
  of 
  the 
  greenish 
  shales; 
  then 
  a 
  

   coarse 
  grained, 
  greenish 
  gray 
  sandstone 
  (C 
  8 
  ) 
  with 
  crossbedding 
  

   is 
  reached. 
  Then 
  the 
  slope 
  for 
  115 
  feet 
  is 
  partly 
  covered 
  with 
  an 
  

   occasional 
  outcrop 
  of 
  the 
  grayish 
  to 
  greenish 
  sandstone. 
  55 
  feet 
  

   above 
  the 
  lowest 
  ledge 
  of 
  these 
  sandstones 
  are 
  thinner 
  gray 
  

   sandstones, 
  and 
  in 
  some 
  rather 
  shaly 
  layers 
  a 
  few 
  imperfectly 
  

   preserved 
  fossils 
  were 
  found 
  — 
  a 
  remnant 
  of 
  the 
  Ithaca 
  fauna 
  — 
  

   which 
  at 
  that 
  locality, 
  by 
  the 
  changed 
  conditions 
  of 
  deposition, 
  

   had 
  narrowly 
  escaped 
  complete 
  extermination. 
  At 
  1235 
  feet 
  

   above 
  the 
  river 
  level 
  is 
  a 
  thick, 
  unusually 
  hard 
  ledge 
  of 
  reddish, 
  

   indurated 
  sandstone. 
  Above, 
  the 
  slope 
  though 
  partly 
  covered 
  

   shows 
  frequent 
  outcrops 
  of 
  red 
  and 
  greenish 
  shales. 
  95 
  feet 
  

   above 
  the 
  top 
  of 
  the 
  reddish 
  sandstone 
  at 
  the 
  top 
  of 
  the 
  brow 
  of 
  

   the 
  hill 
  are 
  soft, 
  argillaceous 
  red 
  shales. 
  On 
  the 
  highway 
  about 
  

   20 
  feet 
  higher 
  are 
  grayish, 
  shaly 
  sandstones 
  (C 
  11 
  ), 
  and 
  50 
  feet 
  

   higher 
  is 
  another 
  outcrop 
  of 
  coarse 
  grained, 
  greenish 
  gray 
  sand- 
  

   stone. 
  The 
  bedding 
  is 
  somewhat 
  irregular 
  but 
  not 
  thick 
  and 
  

   there 
  is 
  a 
  layer 
  of 
  breccia. 
  The 
  only 
  fossils 
  found 
  in 
  place 
  in 
  

   these 
  upper 
  deposits 
  were 
  fragments 
  of 
  plant 
  stems. 
  By 
  the 
  side 
  

   of 
  the 
  road, 
  in 
  loose 
  pieces 
  above 
  the 
  red 
  shales, 
  specimens 
  of 
  

   Tropidoleptus 
  carinatus 
  (Con.) 
  Hall, 
  Spirifer 
  mucronatus 
  (Con.) 
  

   Bill, 
  and 
  Camarotoechia 
  prolifica 
  (Hall) 
  H. 
  & 
  C. 
  were 
  found. 
  It 
  is 
  

  

  