﻿NIAGARA 
  FALLS 
  AND 
  VICINITY 
  

  

  145 
  

  

  Heliolites 
  elegans 
  Hall 
  (Fig. 
  40) 
  (1852. 
  Pal. 
  N, 
  Y. 
  2:130, 
  pi. 
  

   36) 
  

  

  Distinguishing 
  characters. 
  Hemispheric 
  form 
  of 
  corallum, 
  which 
  

   increases 
  in 
  size 
  by 
  lateral 
  rather 
  than 
  interstitial 
  addition; 
  from 
  16 
  

   to 
  18 
  larger 
  calyxes 
  to 
  the 
  inch; 
  psetidosepta 
  reaching 
  halfway 
  to 
  

   the 
  center; 
  microcorallites 
  generally 
  appearing 
  solid; 
  macrocorallites 
  

   often 
  standing 
  out 
  in 
  relief 
  in 
  weathered 
  specimens 
  and 
  having 
  a 
  

   stellate 
  appearance. 
  

  

  Found 
  in 
  the 
  lower 
  part 
  of 
  the 
  Lockport 
  limestone 
  at 
  Lockport 
  

   (Hall). 
  May 
  occur 
  also 
  at 
  Niagara. 
  

  

  Heliolites 
  spiniporus 
  Hall 
  (Fig. 
  41) 
  (1852. 
  Pal. 
  N. 
  Y. 
  2:131, 
  

  

  pl- 
  34) 
  

  

  Distinguishing 
  characters. 
  Turbinate, 
  pyriform, 
  hemispheric 
  or 
  

   sphepoidal 
  form 
  of 
  corallum; 
  divergent 
  corallites, 
  increasing 
  in 
  

  

  Fig. 
  41 
  Heliolites 
  spiniporus 
  with 
  longitudinal 
  and 
  transverse 
  sections 
  enlarged 
  

  

  number 
  by 
  interstitial 
  addition; 
  circular 
  macrocorallites 
  with 
  12 
  

   pseudosepta, 
  which 
  extend 
  only 
  part 
  way 
  to 
  the 
  center; 
  irregular 
  

   or 
  interrupted 
  tabulae 
  which 
  often 
  appear 
  spiniform 
  in 
  section; 
  

   microcorallites 
  in 
  one 
  or 
  more 
  series, 
  angular 
  and 
  tabulate. 
  

  

  Found 
  in 
  the 
  lower 
  part 
  of 
  the 
  Lockport 
  limestone 
  at 
  Lockport 
  

   (Hall). 
  Probably 
  also 
  at 
  Niagara. 
  

  

  