﻿NIAGARA 
  FALLS 
  AND 
  VICINITY 
  

  

  167 
  

  

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  V; 
  

  

  Fig. 
  66 
  Tr( 
  matopora 
  (?) 
  striata 
  much 
  enlarged 
  

  

  Found 
  abundantly 
  in 
  the 
  

   Bryozoa 
  beds 
  of 
  the 
  Rochester 
  

   shales, 
  at 
  Niagara, 
  also 
  at 
  

   Lockport 
  (Hall). 
  

  

  Trematopora 
  ( 
  ?) 
  striata 
  Hall 
  

   (Fig. 
  66) 
  (1852. 
  Pal. 
  N. 
  Y. 
  

   2:153, 
  pi. 
  40A, 
  fig. 
  7a-d 
  and 
  

   8a-b) 
  

  

  Distinguishing 
  characters. 
  

   Expanded 
  at 
  the 
  base 
  ; 
  strongly 
  

   striated; 
  slender, 
  cylindric, 
  

   scarcely 
  tapering 
  branches 
  ; 
  ob- 
  

   long 
  oval 
  apertures 
  distant 
  

   from 
  each 
  other 
  about 
  the 
  

   width 
  of 
  the 
  aperture; 
  intera- 
  

   pertural 
  space 
  with 
  continuous 
  groove. 
  

  

  Found 
  in 
  the 
  Rochester 
  shale 
  at 
  Lockport 
  (Hall), 
  probably 
  also 
  

   at 
  Niagara. 
  

  

  Genus 
  callopora 
  Hall 
  

  

  (emend. 
  Ulrich) 
  

  

  [Ety.: 
  xdXh)^, 
  beauty; 
  7z6f>(>?, 
  pore] 
  

  

  (1852. 
  Pal. 
  N. 
  Y. 
  2 
  :i44) 
  

  

  Zoarium 
  usually 
  ramose, 
  the 
  branches 
  frequently 
  anastomosing 
  

   and 
  forming 
  bushy 
  clumps; 
  zooecia 
  at 
  first 
  prismatic, 
  four 
  to 
  eight 
  

   sided, 
  gradually 
  becoming 
  cylindric 
  in 
  most 
  cases; 
  at 
  first 
  with 
  

   closely 
  set 
  diaphragms, 
  becoming 
  more 
  distant, 
  finally 
  in 
  the 
  m.ature 
  

   region 
  usually 
  closely 
  set; 
  apertures 
  closed 
  at 
  times 
  by 
  perforated, 
  

   often 
  ornamental 
  covers 
  ; 
  mesopores 
  more 
  or 
  less 
  numerous, 
  angular, 
  

   crowded 
  with 
  diaphragms. 
  No 
  acanthopores. 
  

  

  Callopora 
  elegantula 
  Hall 
  (Fig. 
  Gy) 
  (1852. 
  Pal. 
  N. 
  Y. 
  2 
  1144, 
  

   pi. 
  40, 
  fig. 
  la-m) 
  

  

  Distinguishing 
  characters. 
  Cespitose 
  or 
  fruticulose 
  groups 
  of 
  

   small 
  stems 
  frequently 
  branching; 
  branches 
  bifurcating 
  or 
  variously 
  

   diverging 
  from 
  the 
  stem; 
  solid; 
  extremities 
  often 
  hollow 
  or 
  cup-like 
  

   indentations, 
  also 
  blunt; 
  apertures 
  circular, 
  the 
  opercula 
  or 
  covers 
  

  

  