﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  205 
  

  

  in 
  the 
  Hamilton 
  formation 
  both 
  by 
  the 
  fossils 
  in 
  the 
  rocks 
  on 
  the 
  

   western 
  side 
  of 
  the 
  river 
  at 
  XXVIII 
  V 
  2 
  , 
  which 
  at 
  165 
  feet 
  above 
  

   the 
  river 
  are 
  not 
  far 
  below 
  this 
  locality, 
  and 
  by 
  those 
  which 
  occur 
  

   in 
  the 
  shales. 
  

  

  1 
  CamarotoecMa 
  prolifica 
  Hall 
  (a) 
  

  

  Abundant 
  in 
  a 
  thin 
  layer. 
  

  

  2 
  Nuculites 
  ollongatus 
  Con. 
  (rr) 
  

  

  3 
  Pakieoneilo 
  constricta 
  (Con.) 
  Hall 
  . 
  (rr) 
  

  

  4 
  Phthmia 
  sectifrons 
  (Con.) 
  Hall 
  (rr) 
  

  

  5 
  Orthonata 
  (?) 
  parvula 
  Hall 
  (rr) 
  

  

  6 
  Pholadella 
  radiata 
  (Con.) 
  Hall 
  (rr) 
  

  

  7 
  Grammysia 
  arcuata 
  (Con.) 
  Hall 
  (rr) 
  

  

  8 
  G. 
  Urata 
  Hall 
  (rr) 
  

  

  9 
  Pterinopecten 
  vertumnus 
  Hall 
  (c) 
  

   10 
  Bellerophon 
  patulus 
  Hall 
  (?) 
  (rr) 
  

  

  In 
  the 
  Schoharie 
  river 
  valley 
  region 
  the 
  line 
  of 
  separation 
  be- 
  

   tween 
  the 
  Hamilton 
  and 
  Sherburne 
  formations 
  is 
  not 
  as 
  clearly 
  

   shown 
  for 
  part 
  of 
  the 
  distance 
  as 
  it 
  generally 
  is 
  farther 
  west. 
  

   This 
  is 
  due 
  largely 
  to 
  the 
  heavy 
  mantle 
  of 
  drift 
  covering 
  the 
  

   slopes 
  of 
  part 
  of 
  the 
  hills, 
  also 
  the 
  valley 
  near 
  North 
  Blenheim 
  

   where 
  the 
  characters 
  of 
  the 
  two 
  formations 
  blend. 
  It 
  was 
  shown 
  

   pretty 
  clearly, 
  however, 
  in 
  Fulton 
  township 
  that 
  the 
  line 
  of 
  

   division 
  is 
  well 
  toward 
  the 
  top 
  of 
  the 
  high 
  hill 
  south 
  of 
  Panther 
  

   creek 
  which 
  is 
  followed 
  to 
  the 
  upper 
  part 
  of 
  the 
  high 
  hill 
  west 
  of 
  

   the 
  Schoharie 
  river. 
  Then 
  the 
  line 
  is 
  along 
  the 
  side 
  of 
  this 
  hill 
  

   dipping 
  quite 
  rapidly 
  to 
  the 
  south 
  and 
  reaching 
  the 
  river 
  valley 
  

   in 
  the 
  vicinity 
  of 
  North 
  Blenheim 
  and 
  apparently 
  crossing 
  the 
  

   river 
  somewhat 
  south 
  of 
  that 
  village. 
  Then 
  it 
  gradually 
  rises 
  on 
  

   the 
  slope 
  of 
  the 
  hill 
  east 
  of 
  the 
  river 
  as 
  it 
  is 
  followed 
  northerly 
  

   till 
  opposite 
  Breakabeen 
  we 
  find 
  it 
  on 
  the 
  hill 
  to 
  the 
  east 
  and 
  

   above 
  Houston 
  Corners. 
  From 
  there 
  it 
  continues 
  northerly 
  to 
  

   the 
  Moheganter 
  hill 
  in 
  the 
  southern 
  part 
  of 
  Middleburg, 
  enters 
  

   the 
  northwestern 
  part 
  of 
  Broome 
  township 
  and 
  follows 
  the 
  

   western 
  side 
  of 
  Catskill 
  creek 
  for 
  some 
  distance 
  below 
  Franklin- 
  

   ton 
  before 
  it 
  crosses 
  to 
  the 
  eastern 
  side. 
  

  

  