﻿-254 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  20 
  Actinopteria 
  boydi 
  (Con.) 
  Hall 
  (rr) 
  

  

  21 
  Liopteria 
  sp. 
  (rr) 
  

  

  22 
  Plenrotomaria 
  sulcomarginata 
  Con. 
  (rr) 
  

  

  23 
  Bellerophon 
  thalia 
  Hall 
  (?) 
  (rr) 
  

  

  24 
  Ortlioceras 
  crotalum 
  Hall 
  (rr) 
  

  

  25 
  Pliacops 
  rana 
  (Green) 
  Hall 
  (rr) 
  

  

  26 
  Crinoid 
  calyx 
  ' 
  (rr) 
  

  

  Above 
  the 
  quarry 
  the 
  rocks 
  are 
  well 
  covered, 
  but 
  about 
  215 
  

   feet 
  higher 
  than 
  its 
  base 
  is 
  a 
  ledge 
  of 
  bluish 
  sandstone 
  on 
  top 
  

   of 
  which 
  are 
  green 
  blocky 
  shales 
  (C 
  3 
  ). 
  Near 
  the 
  farm 
  house 
  at 
  

   the 
  northern 
  end 
  of 
  the 
  hill 
  about 
  285 
  feet 
  above 
  the 
  Hamilton 
  

   fauna 
  are 
  blocky 
  red 
  shales 
  (C 
  5 
  ) 
  which 
  show 
  along 
  the 
  crest 
  of 
  

   the 
  ridge 
  at 
  various 
  places, 
  following 
  it 
  to 
  the 
  soujth,and 
  specially 
  

   well 
  on 
  the 
  Eensselaerville-Clarksville 
  highway, 
  crossing 
  it 
  

   about 
  one 
  mile 
  farther 
  south. 
  At 
  the 
  four 
  corner's 
  one 
  and 
  one 
  

   quarter 
  miles 
  east 
  of 
  Eensselaerville 
  is 
  a 
  good 
  exposure 
  of 
  the 
  

   red 
  shale. 
  To 
  the 
  east 
  at 
  the 
  highest 
  point 
  on 
  the 
  road 
  is 
  red 
  

   shale 
  again 
  and 
  the 
  terrace 
  on 
  the 
  northern 
  side 
  of 
  the 
  road 
  

   shows 
  its 
  rise 
  to 
  the 
  north 
  very 
  nicely. 
  Along 
  the 
  road 
  down 
  

   the 
  eastern 
  side 
  of 
  the 
  ridge 
  are 
  first 
  green 
  shales 
  below 
  the 
  

   reds 
  of 
  the 
  terrace, 
  then 
  reds 
  again 
  showing 
  a 
  thickness 
  of 
  more 
  

   than 
  60 
  feet 
  of 
  the 
  Oneonta 
  formation 
  in 
  the 
  upper 
  part 
  of 
  the 
  

   ridge. 
  On 
  the 
  road 
  160 
  feet 
  lower 
  than 
  the 
  crest 
  of 
  the 
  ridge 
  

   are 
  greenish 
  and 
  bluish 
  sandstones 
  which 
  are 
  probably 
  near 
  the 
  

   same 
  stratigraphic 
  position 
  as 
  the 
  zone 
  of 
  XXX 
  C 
  3 
  at 
  the 
  northern 
  

   end 
  of 
  the 
  hill. 
  The 
  red 
  shales 
  of 
  this 
  ridge 
  were 
  noted 
  and 
  

   referred 
  to 
  the 
  Oneonta 
  formation 
  by 
  Dartbn 
  who 
  stated 
  that 
  

   in 
  Albany 
  co. 
  " 
  From 
  the 
  northeastward 
  the 
  first 
  exposures 
  

   of 
  the 
  Oneonta 
  formation 
  are 
  near 
  the 
  summit 
  of 
  the 
  high 
  ridge 
  

   east 
  of 
  Eensselaerville, 
  where 
  the 
  red 
  shales 
  outcrop 
  along 
  the 
  

   road 
  and 
  in 
  the 
  adjacent 
  fields 
  over 
  a 
  narrow 
  belt. 
  This 
  belt 
  

   widens 
  to 
  the 
  southward 
  and 
  covers 
  all 
  of 
  the 
  high 
  region 
  along 
  

   the 
  Westerlo-Eensselaerville 
  boundary.'"* 
  

  

  XXX 
  E. 
  To 
  the 
  northeast 
  of 
  section 
  XXX 
  C 
  and 
  about 
  two 
  miles 
  

   northeast 
  of 
  Eensselaerville 
  is 
  an 
  excellent 
  quarry 
  known 
  as 
  the 
  

  

  a 
  1 
  3th 
  annual 
  report 
  N. 
  Y. 
  state 
  geologist, 
  p. 
  239. 
  

  

  