﻿HUDSON 
  RIVER 
  BEDS 
  NEAR 
  ALBANY 
  503 
  

  

  identified 
  as 
  Diplograptus 
  mucronatus, 
  but 
  unques- 
  

   tionably 
  a 
  new 
  species, 
  is 
  one 
  of 
  the 
  small 
  mucronate 
  forms 
  of 
  

   the 
  Utica 
  shale 
  not 
  occurring 
  in 
  the 
  Normans 
  kill 
  fauna. 
  

  

  S. 
  W. 
  Ford 
  

  

  In 
  the 
  next 
  year, 
  the 
  untiring 
  collector, 
  S. 
  W. 
  Ford, 
  reported 
  

   the 
  discovery 
  of 
  another 
  interesting 
  locality 
  at 
  Schodack 
  Land- 
  

   ing, 
  to 
  the 
  southeast 
  of 
  Albany, 
  on 
  the 
  east 
  bank 
  of 
  the 
  Hudson 
  

   river 
  (29). 
  

  

  He 
  found 
  the 
  slates 
  excellently 
  exposed, 
  though 
  bent 
  and 
  con- 
  

   torted 
  almost 
  beyond 
  description, 
  in 
  two 
  promontories, 
  where 
  a 
  

   band 
  of 
  black 
  slates 
  yielded 
  the 
  characteristic 
  Normans 
  kill 
  

   fauna, 
  and 
  "at 
  once 
  resolved 
  to 
  institute 
  a 
  careful 
  search 
  for 
  

   other 
  fossils 
  in 
  the 
  rocks 
  of 
  the 
  neighborhood"; 
  in 
  which 
  endeavor 
  

   he 
  was 
  very 
  successful, 
  for 
  a 
  bed 
  of 
  limestone 
  about 
  2 
  feet 
  thick, 
  

   and 
  in 
  part 
  somewhat 
  brecciated 
  in 
  appearance, 
  inclosed 
  in 
  the 
  

   slates, 
  was 
  found. 
  This 
  yielded 
  the 
  following 
  species: 
  

   Asaphus 
  platycephalus, 
  Calymene 
  sen 
  aria, 
  

   Or 
  this 
  testudinaria, 
  O. 
  lynx,Leptaena 
  sericea, 
  

   Strophomena 
  alternata 
  and 
  the 
  hemispheric 
  form 
  of 
  

   Chaetetes 
  lycoperdon. 
  He 
  concluded: 
  "None 
  of 
  the 
  

   species 
  of 
  this 
  locality 
  are 
  distinctive 
  of 
  the 
  Utica 
  slate, 
  and 
  both 
  

   the 
  limestone 
  and 
  its 
  associated 
  graptolitic 
  slates 
  represent 
  in 
  my 
  

   estimation 
  the 
  Hudson 
  river 
  group." 
  These 
  fossils 
  are, 
  however, 
  

   not 
  restricted 
  to 
  the 
  Hudson 
  river 
  group 
  and 
  would 
  prove 
  only 
  

   that 
  the 
  Normans 
  kill 
  graptolite 
  shales 
  may 
  belong 
  anywhere 
  

   from 
  the 
  base 
  of 
  the 
  Trenton 
  to 
  the 
  Lorraine 
  beds. 
  

  

  In 
  another 
  paper 
  (30), 
  Ford 
  discussed 
  the 
  age 
  of 
  the 
  slaty 
  and 
  

   arenaceous 
  rocks 
  in 
  the 
  vicinity 
  of 
  Schenectady, 
  which 
  by 
  Mather, 
  

   Emmons 
  and 
  Whitfield 
  have 
  been 
  considered 
  to 
  be 
  of 
  Lorraine 
  

   age. 
  Ford 
  found 
  at 
  Schenectady 
  Graptolithus 
  pristis, 
  

   Gr. 
  mucronatus 
  (that 
  is, 
  a 
  mucronate 
  Diplograptus), 
  

   Triarthrus 
  becki 
  and 
  a 
  Lingula, 
  which 
  he 
  considers 
  

   tobeLingulacurta. 
  On 
  the 
  strength 
  of 
  this 
  evidence 
  he 
  

   regards 
  the 
  Schenectady 
  beds 
  as 
  of 
  Utica 
  age. 
  This 
  result, 
  if 
  

   farther 
  verified, 
  would 
  be 
  interesting 
  in 
  so 
  far 
  as 
  it 
  would 
  show 
  

  

  