NIAGARA FALLS AND VICINITY 



141 



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Fig. 34 Favosites venustus with longitudinal e.nd transverse sections 



Found in the Lockport limestone at Lockport and Niagara, often 

 replaced by anhydrite or other materials. 



Favosites parasiticus (Hall)^ (Fig. 35). Astrocerium par- 

 as iti cum Hall (1852. Pal. N. Y. 2:122, pi. 34) Not F. 

 parasiticus Phillips. 



Distinguishing characters. Hemispheric 

 or spheroidal coralla, independent or at- 

 tached to, or enveloping other bodies; un- 

 equal size of calyxes, which are stellate 

 from septal spines, of which there are from. 

 12 to 24; subcircular outline of some of the 

 larger calyxes, the majority being angular. 



Found in the Bryozoan bed of the Rochester shales in the Niagara 

 sections. Also in the lower part of the limestone at Lockport 

 (Hall). 



Favosites pyriformis (Hall)^ (Fig. 36). Astrocerium pyri- 

 forme Hall (1852. Pal. N. Y. 2:123, pi. 34A) 



Distinguishing characters. Irregularly subturbinate, pyriform or 

 spheroidal form of corallum; corallites radiating from a more or 

 less extended base, spreading out above and rapidly increasing in 

 number by interstitial addition; calyxes varying from triangular to 



^These species are regarded by Whiteaves and Lambe as synonyms of 

 Favosites hisingeri E. and H. 



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Fig. 35 Favosites parasiticus 



