﻿Report 
  of 
  the 
  State 
  Geologist. 
  335 
  

  

  P. 
  Itys, 
  P. 
  rugidata, 
  Cyrtolites 
  mitella, 
  JBellerophon 
  patulus, 
  

   and 
  Platyceras 
  Thetis. 
  

  

  Lamellibeanchs: 
  Quite 
  abundant 
  and 
  diversified, 
  Pletho- 
  

   mytilus 
  oviformis, 
  Goniophora 
  Hamiltonim 
  and 
  Cypricardella 
  

   bellistriata 
  are 
  predominant. 
  The 
  commoner 
  species 
  are 
  

   Modiomorpha 
  mytiloides, 
  Grammysia 
  arcuata, 
  Actinopteria 
  

   decussata, 
  Niwida 
  lirata, 
  Palceoneilo 
  plana. 
  Those 
  of 
  occa- 
  

   sional 
  occurrence, 
  Cardiola 
  retrostriata 
  (one), 
  Zninulicardium 
  

   fragile, 
  Palceoneilo 
  constrieta, 
  Nuculites 
  triqueter, 
  Pterino- 
  

   pecten 
  vertummus, 
  Orthonota 
  parvula, 
  Schizodus 
  appressus, 
  

   Phthonia 
  7iodoeostata 
  i 
  Modiella 
  pygmcea, 
  Liopteria 
  Greeni, 
  

   Macrodon 
  Hamiltoniw, 
  Aviculopecten 
  princeps, 
  Tellinopsis 
  

   subemarginata. 
  

  

  Beachiopods: 
  Prevailing 
  species, 
  Chonetes 
  lepida, 
  Ambo- 
  

   eoelia 
  umbonata, 
  Spirifer 
  audacidus, 
  Tropidoleptus 
  carinatus, 
  

   Orbiculoidea 
  media. 
  Others 
  of 
  common 
  occurrence, 
  Stro- 
  

   pheodonta 
  perplana, 
  S. 
  nacrea, 
  Spirifer 
  granulosus, 
  8. 
  mucro- 
  

   natus, 
  Athyris 
  spiriferoides, 
  Productella 
  spinulicosta, 
  

   Chonetes 
  scitula, 
  Lingxda 
  cf. 
  densa, 
  Pholidops 
  Hamiltoniaz. 
  

   The 
  following 
  are 
  occasionally 
  observed: 
  Orthis 
  Vdnicxemi, 
  

   Trematospira 
  hirsuta, 
  Stropheodonta 
  concava, 
  JVucleospira 
  

   concinna, 
  Cyrtina 
  Hamiltonensis, 
  Orthothetes 
  arctostriata, 
  

   Terebratula 
  Ontario. 
  

  

  Coeals: 
  Very 
  few. 
  Pleurodictyum 
  stylopora, 
  Streptelasma 
  

   rectum 
  occasionally; 
  Favosites 
  Argus 
  rarely. 
  

  

  