364 PALEOZOIC ROCKS OF THE HUDSON BAY REGION 



Thickness 

 in feet 

 CloHnda mesopUcata. 



Glassia variabilis. 



Glassia variabilis var. 



Atrypa cf. reticularis. 



Spirifer cf. crispus. 



Spirifer sp. 



Reticularia septentrionalis. 



Meristina expansa. 



Ambonychia septentrionalis. 



Arribonychia undulata. 



Liospira stevensoni. ^ 



Salpingo stoma boreale. 



Megomphala rol)usta. 



Gyronema hrevispira. 



Phycnomphalus colemani. 



Platyceras compactum. 



Diapliorostoma perforatum. 



Strophostylus amplus. 



Strophostylus inflatus. 



Stropho stylus cf. flli€inctus. 



Orthoceras sp. 



Phragmoceras sp. 



Illcenus cf. ioxus. 



Illcenus sp. 



Bronteus aquilonarius. 



Bronteus ekioanensis. 



Cf. Amphilichas sp. 



Cerawus sp. 

 6. Limestone, composed largely of coral reef rock between 

 the domes and ridges of which layers of fine-grained, 

 thin-bedded limestone are inclined at various angles ; 

 exposed at the portage at Strong Rapids and at the 

 rapids one mile above the portage; containing the 

 fossils named below : f 24 



Zaphrentis patens. 



Zaphrentis sp. 



Pycnostylus guelphensis. 



Favosites sp. 



T rimer ella ekwanensis. 



Stropheodonta sp. 1 



Stropheodonta sp. 2 



Plectamhonites cf. transversalis. 



Gypidula sp. 



Dalmanella elegantula. 



Glassia variaMlis. 



Atrypa cf. reticularis. 



Spirifer sp. 



Reticularia septentrionalis. 



