﻿HUDSON 
  RIVER 
  BEDS 
  NEAR 
  ALBANY 
  527 
  

  

  of 
  Utica 
  age, 
  and 
  Walcott 
  declared 
  it 
  to 
  represent 
  in 
  the 
  whole 
  

   the 
  upper 
  Utica 
  age 
  of 
  the 
  Mohawk 
  valley 
  region. 
  It 
  is 
  remark- 
  

   able 
  for 
  the 
  considerable 
  number 
  of 
  Lorraine 
  forms 
  on 
  one 
  hand 
  

   and 
  the 
  nearly 
  as 
  great 
  number 
  of 
  Trenton 
  forms 
  on 
  the 
  other. 
  

   Some 
  of 
  these 
  Lorraine 
  forms 
  were 
  also 
  observed 
  in 
  the 
  very 
  old 
  

   Utica 
  beds 
  of 
  Mechaniesville, 
  and 
  their 
  varietal 
  differences 
  from 
  

   the 
  typical 
  Lorraine 
  forms 
  remarked 
  on. 
  None 
  of 
  these 
  Trenton 
  

   forms 
  occur 
  in 
  the 
  pure 
  Lorraine 
  faunas 
  of 
  Block 
  island 
  and 
  

   Water 
  ford. 
  1 
  

  

  Station 
  11. 
  Railroad 
  station, 
  Menands 
  

  

  A 
  few 
  fossils 
  were 
  discovered 
  by 
  Dr 
  Clarke 
  in 
  fissile 
  argilla- 
  

   ceous 
  shales 
  exposed 
  in 
  a 
  small 
  gravel 
  pit 
  about 
  a 
  hundred 
  yards 
  

   north 
  of 
  Menands 
  station. 
  The 
  fossils 
  are: 
  

  

  Dalmanella 
  testudinaria, 
  Dolman 
  sp. 
  cc 
  

  

  Plectortnis 
  plicatella, 
  Hall, 
  c 
  

  

  Plectambonites 
  sericea, 
  Soicerby 
  <sp. 
  cc 
  

  

  P. 
  sericea 
  var. 
  aspera, 
  James 
  var. 
  c 
  

  

  Rafinesquina 
  deltoidea, 
  Conrad 
  sp. 
  rr 
  

  

  Archinacella 
  patelliformis, 
  Hall, 
  c 
  

  

  Belleropnon 
  bilobatus, 
  Hall, 
  r 
  

  

  Spyroceras 
  bilineatum, 
  Hall, 
  r 
  

  

  Orenobolbina 
  ciliata, 
  Emmons 
  sp. 
  r 
  

  

  The 
  presence 
  of 
  P 
  1 
  e 
  c 
  t 
  o 
  r 
  t 
  h 
  i 
  s 
  plicatella 
  and 
  Spy- 
  

   roceras 
  bilineatum 
  connects 
  this 
  faunule 
  with 
  the 
  

   faunas 
  of 
  Green 
  Island. 
  

  

  Station 
  12. 
  Devil's 
  Den, 
  Watervliet 
  

  

  In 
  a 
  deep 
  gorge, 
  called 
  Devil's 
  Den 
  (station 
  12), 
  behind 
  Gen. 
  

   Schuyler's 
  historic 
  home 
  and 
  half 
  a 
  mile 
  west 
  of 
  Watervliet, 
  

   blackish 
  and 
  gray, 
  fissile, 
  soft 
  argillaceous 
  shales, 
  somewhat 
  

   sandy 
  toward 
  the 
  upper 
  end 
  of 
  the 
  gorge, 
  are 
  exposed 
  for 
  about 
  

   half 
  a 
  mile. 
  These 
  yielded 
  a 
  number 
  of 
  well 
  preserved 
  specimens 
  

   of 
  Orthograptus 
  quadrimucronatus, 
  Hall 
  sp. 
  

  

  a 
  The 
  association 
  of 
  Trenton 
  and 
  Lorraine 
  forms 
  in 
  the 
  same 
  beds, 
  and 
  

   the 
  peculiar 
  position 
  of 
  these 
  beds 
  in 
  the 
  Utica 
  zone 
  will 
  W 
  discussed 
  

   later 
  (p. 
  564). 
  

  

  