﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  293 
  

  

  marsh 
  at 
  its 
  western 
  edge 
  beyond 
  which 
  rises 
  another 
  sharp 
  

   ridge. 
  

  

  Near 
  the 
  church 
  in 
  Unionville 
  or 
  Centreville, 
  about 
  one 
  mile 
  

   southwest 
  of 
  the 
  four 
  corners 
  on 
  the 
  road 
  from 
  Fawns 
  to 
  Sauger- 
  

   ties, 
  are 
  coarse, 
  bluish 
  rather 
  arenaceous 
  shales 
  containing 
  large 
  

   Hamilton 
  lamellibranchs. 
  The 
  fossils 
  occur 
  in 
  layers 
  and 
  are 
  

   not 
  abundant 
  as 
  will 
  be 
  seen 
  from 
  the 
  following 
  list: 
  

  

  1 
  Jlodiomorpha 
  mytiloides 
  Con. 
  (r) 
  

  

  2 
  M. 
  macilenta 
  (?) 
  Hall 
  (rr) 
  

  

  3 
  Mytilarca 
  oviformis 
  (Con.) 
  Hall 
  (r) 
  

  

  4 
  Camarotoechia 
  sp. 
  (rr) 
  

  

  5 
  SpJienotus 
  subtortuosus 
  (?) 
  Hall 
  (rr) 
  

  

  Along 
  the 
  highway 
  to 
  the 
  east 
  are 
  sandstones 
  and 
  shales 
  in 
  

   which 
  fossils 
  are 
  very 
  rare. 
  The 
  quarries 
  at 
  this 
  place 
  are 
  

   located 
  both 
  below 
  and 
  above 
  the 
  zone 
  in 
  which 
  the 
  fossils 
  were 
  

   found. 
  The 
  sandstones 
  in 
  these 
  quarries 
  do 
  not 
  have 
  the 
  marked 
  

   banded 
  appearance 
  of 
  those 
  in 
  the 
  Sherburne 
  formation 
  and 
  this 
  

   fact 
  together 
  with 
  the 
  occurrence 
  of 
  Hamilton 
  fossils 
  seems 
  to 
  

   show 
  that 
  they 
  are 
  in 
  that 
  formation. 
  The 
  line 
  of 
  division 
  be- 
  

   tween 
  the 
  Hamilton 
  and 
  Sherburne 
  is 
  given 
  on 
  the 
  map 
  ias 
  not 
  far 
  

   west 
  of 
  Unionville, 
  while 
  the 
  Plaaterskill 
  valley 
  to 
  the 
  west 
  is 
  

   in 
  the 
  Sherburne 
  formation. 
  At 
  the 
  corners 
  west 
  of 
  the 
  Plaaters- 
  

   kill 
  on 
  the 
  road 
  from 
  Unionville 
  to 
  Daisy 
  is 
  a 
  small 
  church 
  and 
  

   along 
  the 
  road 
  from 
  the 
  church 
  south 
  to 
  the 
  east 
  and 
  west 
  road 
  

   from 
  High 
  woods 
  to 
  Daisy 
  are 
  frequent 
  outcrops 
  of 
  red 
  and 
  green 
  

   shales 
  and 
  gray 
  sandstones. 
  The 
  base 
  of 
  the 
  reds 
  is 
  apparently 
  

   to 
  the 
  east 
  of 
  this 
  road. 
  

  

  In 
  the 
  quarry 
  at 
  Highwoods 
  is 
  a 
  bluish, 
  somewhat 
  banded 
  

   sandstone 
  which 
  is 
  separated 
  by 
  some 
  bluish 
  though 
  mainly 
  

   greenish 
  layers 
  of 
  argillaceous 
  shales. 
  There 
  is 
  a 
  stratum 
  of 
  

   breccia 
  and 
  some 
  of 
  the 
  sandstone 
  has 
  quite 
  a 
  reddish 
  tint 
  in 
  the 
  

   bright 
  sunshine. 
  No 
  fossils 
  were 
  found. 
  The 
  rock 
  is 
  referred 
  to 
  

   the 
  Sherburne 
  formation. 
  In 
  this 
  region 
  there 
  are 
  excellent 
  ex- 
  

   amples 
  of 
  glacial 
  planed 
  and 
  striated 
  surfaces, 
  east 
  of 
  the 
  High- 
  

   woods 
  store 
  for 
  example 
  on 
  blue 
  sandstone 
  by 
  the 
  side 
  of 
  the 
  

   road 
  are 
  conspicuous 
  striae 
  which 
  run 
  N 
  15° 
  E. 
  In 
  old 
  quarries 
  

  

  