﻿REPORT 
  OF 
  THE 
  DIRECTOR 
  r27 
  

  

  BIBDSEYE 
  FORMATION 
  

  

  The 
  only 
  locality 
  of 
  the 
  Birdseje 
  observed 
  was 
  at 
  Ilathbone 
  

   brook. 
  It 
  is 
  shown 
  along 
  West 
  Canada 
  creek 
  at 
  the 
  mouth 
  of 
  the 
  

   brook 
  and 
  in 
  a 
  railroad 
  cut 
  a 
  short 
  distance 
  north. 
  It 
  is 
  about 
  14 
  

   feet 
  thick, 
  coarse 
  and 
  yellowish 
  in 
  the 
  lower 
  layers, 
  fine 
  and 
  dove- 
  

   gray 
  above 
  with 
  no 
  fossils 
  except 
  calcite 
  "nests'' 
  which 
  maybe 
  

   replacements 
  of 
  Scolithus 
  tubes. 
  

  

  BLACK 
  RIFER 
  FORMATION 
  

  

  Rathbone 
  (near 
  Newport) 
  (130 
  B). 
  The 
  lower 
  beds 
  of 
  the 
  

   section 
  are 
  not 
  well 
  exposed 
  on 
  Rathbone 
  brook 
  itself 
  and 
  the 
  

   Black 
  river 
  formation 
  is 
  not 
  seen 
  in 
  contact 
  with 
  the 
  lower 
  Trenton 
  

   .in 
  the 
  immediate 
  vicinity. 
  In 
  the 
  railroad 
  cut, 
  a 
  short 
  distance 
  

   north, 
  already 
  referred 
  to, 
  6 
  feet, 
  9 
  inches 
  of 
  the 
  Black 
  river 
  lime- 
  

   stone 
  is 
  exposed 
  which 
  yielded 
  the 
  following 
  species 
  : 
  

  

  lllaenus 
  americanus 
  Billings 
  Stictopora 
  sp. 
  

  

  Leper 
  ditia 
  fahulites 
  (Conrad) 
  Rajinesquina 
  alternata 
  (Emmons) 
  

  

  Avicula 
  trentonensis 
  Conrad 
  Strophomena 
  incurvata 
  (Shepard) 
  

  

  C]/p?'icardites 
  ventricosus 
  (Rail) 
  Ctenodovta 
  Z^'y^^^ 
  (Hall) 
  

  

  Raphisioma 
  amerlcana 
  Billings 
  Tellinor)iya 
  nasuta 
  Hall 
  

  

  Zygospira 
  recurvirostra 
  Hall 
  Isotelus 
  gigas 
  DeKay 
  

  

  Cyrtoceras 
  tenuistriatus 
  Hall 
  Protarea 
  vetusta 
  (Hall) 
  

  

  Rhynohotrema 
  inaequivalvis 
  Holopea 
  sp. 
  

  

  (Castlenau) 
  Murchisonia 
  sp. 
  

  

  Bathyurus 
  extans 
  (Hall) 
  Modiolopsis 
  sp. 
  

   Dalmanella 
  subaequata 
  (Conrad) 
  Bellerophon 
  sp. 
  

   Dinorthis 
  gL 
  pecti7ieUa{Emmons) 
  Comdai^ia 
  sp. 
  

  

  Orthoceras 
  sp. 
  Isochilina 
  sp. 
  

  

  The 
  rock 
  is 
  barren 
  in 
  some 
  portions, 
  crystalline 
  and 
  highly 
  fos- 
  

   siliferous 
  in 
  others, 
  especially 
  toward 
  the 
  top; 
  the 
  fossils 
  being 
  

   brought 
  out 
  by 
  weathering, 
  Chert 
  nodules 
  occur 
  in 
  the 
  rock. 
  It 
  

   is 
  a 
  nearly 
  black, 
  compact 
  limestone, 
  having 
  a 
  conchoidal 
  fracture 
  

   and 
  weathering 
  gray 
  or 
  yellowish. 
  

  

  Boonville. 
  The 
  Black 
  river 
  limestone 
  is 
  well 
  exposed 
  in 
  the 
  bed 
  

   of 
  Dry 
  Sugar 
  creek 
  near 
  Boonville 
  quarries 
  (140A). 
  The 
  beds 
  dip 
  

   4° 
  8 
  10° 
  E, 
  and 
  are 
  deeply 
  seamed 
  in 
  all 
  directions, 
  so 
  that 
  the 
  

   creek, 
  although 
  of 
  considerable 
  size, 
  becomes 
  a 
  '*lost" 
  river 
  in 
  the 
  

   crevasses 
  just 
  below 
  the 
  quarries 
  and 
  so 
  remains 
  nearly 
  to 
  its 
  

  

  