﻿CLASSIFICATION, 
  ETC. 
  OP 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  307 
  

  

  for 
  any 
  considerable 
  distance. 
  In 
  general 
  the 
  rocks 
  are 
  well 
  

   covered 
  by 
  drift 
  along 
  this 
  part 
  of 
  the 
  Neversink 
  valley 
  except 
  

   on 
  the 
  steep 
  bluffs, 
  and 
  boulders 
  in 
  large 
  quantities 
  have 
  been 
  

   swept 
  into 
  it. 
  

  

  At 
  Rose 
  Point 
  on 
  the 
  Monticello 
  and 
  Port 
  Jervis 
  railroad 
  is 
  a 
  

   cut 
  showing 
  an 
  excellent 
  exposure 
  of 
  Hamilton 
  arenaceous 
  shales 
  

   and 
  sandstones. 
  The 
  dip 
  varies 
  from 
  40° 
  to 
  45°N, 
  30°W. 
  

   These 
  shales 
  contain 
  abundant 
  fossils 
  and 
  it 
  is 
  one 
  of 
  the 
  best 
  

   localities 
  in 
  the 
  Neversink 
  valley 
  for 
  collecting. 
  The 
  fauna 
  is 
  

   as 
  follows: 
  

  

  1 
  Spirifer 
  granulomas 
  (Con.) 
  H. 
  & 
  0. 
  (c) 
  

  

  2 
  8. 
  medialis 
  Hall 
  (?) 
  (rr) 
  

  

  3 
  S. 
  mucronatus 
  (Con.) 
  Bill. 
  (rr) 
  

  

  4 
  Tropidoleptus 
  car'inatus 
  (Con.) 
  Hall 
  (rr) 
  

  

  5 
  Nyassa 
  arguta 
  Hall 
  (c) 
  

  

  6 
  Nucula 
  varicosa 
  Hall 
  (rr) 
  

  

  7 
  Modiomorpha 
  concentrica 
  (Con.) 
  Hall 
  (rr) 
  

  

  8 
  Chonetes 
  mucronata 
  Hall 
  (r) 
  

  

  9 
  Camarotoecliia 
  congregata 
  (Con.) 
  H. 
  & 
  C. 
  (r) 
  

  

  10 
  Athyris 
  spirifet^oides 
  (Eaton) 
  Hall 
  (r) 
  

  

  11 
  Chonetes 
  deflecta 
  Hall 
  (?) 
  (rr) 
  

  

  12 
  Ambocoelia 
  umbonata 
  (Con.) 
  Hall 
  (c). 
  

  

  13 
  Palaeoneilo 
  emarginata 
  (Con.) 
  Hall 
  (r) 
  

  

  14 
  Nucula 
  corbuliformis 
  Hall 
  (r) 
  

  

  15 
  Nuculites 
  triqueter 
  Con. 
  (rr) 
  

  

  16 
  Palaeoneilo 
  constricta 
  (Con.) 
  Hall 
  (rr) 
  

  

  17 
  P. 
  plana 
  BiSdl 
  (?) 
  (rr) 
  

  

  18 
  Nyassa 
  recta 
  Hall 
  (?) 
  (rr) 
  

  

  19 
  Modiomorpha 
  suoalata 
  (Con.) 
  Hall 
  (?) 
  (c) 
  

  

  20 
  Macrodon 
  hamiltoniae 
  Hall 
  (rr) 
  

  

  21 
  Grammy 
  sia 
  bisulcata 
  (Con.) 
  Hall 
  (rr) 
  

  

  22 
  Eomalonotus 
  dekayi 
  (Green) 
  Emm. 
  (r) 
  

  

  23 
  Dalmanites 
  (Cryphaeus) 
  boothi 
  (Green) 
  Hall 
  (?) 
  (rr) 
  

  

  24 
  Pleurotomaria 
  sulcomarginata 
  Con. 
  or 
  P. 
  itys 
  Hall 
  (c) 
  

  

  25 
  Bellerophon 
  patulus 
  Hall 
  (?) 
  possibly 
  B. 
  natator 
  Hall 
  (rr) 
  

  

  26 
  Loxonema 
  delphicola 
  Hall 
  (rr) 
  

  

  