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; pseudosepta 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 



spheroidal form of corallum; divergent corallites, increasing in 



PTMnH 



: 



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. 



