﻿334 
  Forty-seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  467 
  

  

  Shales 
  with 
  fossils 
  in 
  pyrite. 
  Cryphceus 
  Boothi 
  very 
  abundant, 
  

   no 
  other 
  trilobites. 
  Orthoceras 
  exile, 
  0. 
  subulatum, 
  0. 
  nuntium, 
  

   0. 
  emaceratum 
  prevail. 
  Species 
  not 
  occurring 
  in 
  the 
  enclosing 
  

   fauna 
  are 
  Bellerophon 
  Leda, 
  Holopea 
  sp. 
  n.?, 
  Hyolithes 
  sp.?, 
  Pho- 
  

   ladella 
  parallela, 
  P. 
  radiata, 
  Phthonia 
  nodocostata, 
  Nuculites 
  sp.n., 
  

   Grammysia 
  arcuata, 
  Schizodus 
  appresmis, 
  Pholidops 
  Hamiltonice. 
  

  

  Graptolites: 
  Lictyonema 
  Hamiltonice, 
  common. 
  

  

  Corals: 
  Favosites 
  arbusculus, 
  F. 
  Argus, 
  Pleurodictyum 
  

   stylopora 
  common; 
  Eridophyllam 
  Archiaci, 
  Striatopora 
  lim- 
  

   bata, 
  Ti^achypora 
  degantula, 
  Streptelasma 
  rectum 
  occasionally. 
  

  

  473 
  

  

  476 
  

  

  Blue 
  shales, 
  slightly 
  harder 
  and 
  more 
  calcareous. 
  

  

  At 
  476-478 
  is 
  intercalated 
  a 
  concretionary 
  layer 
  containing 
  

   pyrites 
  and 
  some 
  fossils 
  in 
  a 
  silicified 
  condition. 
  Fossils 
  

   comparatively 
  abundant 
  and 
  uniformly 
  distributed. 
  

  

  Concretionary 
  layer 
  with 
  silicified 
  fostils. 
  Loxonema 
  Hamil- 
  

   tonice 
  (lar 
  ge),Amboccelia 
  umbonata, 
  Ghonetes 
  sp., 
  and 
  Spirifer 
  

   audaculus 
  prevail. 
  Cryphceus 
  Boothi, 
  Athyris 
  spirifer 
  oides, 
  

   Strophalosia 
  truncata, 
  Striatopora 
  limbata 
  and 
  Trachypora 
  

   elegantida 
  common. 
  

  

  Trilobites: 
  Phacops 
  rana 
  and 
  Cordania 
  gemmea 
  only 
  

   observed, 
  the 
  former 
  abundant. 
  

  

  Cephalopods: 
  The 
  fauna 
  is 
  characterized 
  by 
  the 
  great 
  

   abundance 
  of 
  Orthoceras 
  (Edipus. 
  Other 
  species 
  observed 
  

   are 
  0. 
  nuntium, 
  O. 
  cf. 
  nuntium, 
  0. 
  aulax, 
  Goniatites 
  Van- 
  

   uxemi, 
  Gyroceras 
  sp. 
  

  

  Gasteropods 
  : 
  Loxonema 
  Hamiltonice, 
  Pleurotomaria 
  Lu- 
  

   cina 
  and 
  Bellerophon 
  Leda 
  common. 
  Of 
  less 
  frequent 
  occur- 
  

   rence 
  are 
  Diaphorostoma 
  lineatum, 
  Pleurotomaria 
  capillaria, 
  

  

  