I46 NEW YORK STATE MUSEUM 



Heliolites pyrif oralis Guettard (Fig. 42) (Hall. 1852. Pal. 

 N. 7.2:133, pi. 36A) 



Distinguishing characters. Macrocorallites larger than preceding, 

 and generally more widely separated; mostly several series of micro- 



,t?t 



-■■'\ 



Fig. 42 Heliolites pyriformis 



corallites, though they may sometimes be absent when macro- 

 corallites are in contact; short pseudosepta. 



Found commonly in the lower Lockport limestone at Lockport 

 (Hall). Probably also at Niagara. 



Genus cladopora Hall 



[Ety. : zXddos } twig; ~6po?, pore] 



(1852. Pal. N. Y. 2 1137) 



Corallum branching or reticulate; branches cylindric or slightly 

 compressed with terete terminations. Corallites small, radiating 

 equally on all sides from the axis, and opening on the surface in 

 rounded or subangular expanded calyxes, which are generally con- 

 tiguous, and apparently destitute of septa. 



Cladopora seriata Hall (Fig. 43) (1852. Pal. N. Y. 2:137, pi- 3&) 



Distinguishing characters. Nearly parallel, rather closely crowded 



branches, forming a glomerate mass, the branches sometimes 



