SECTIOX ALOXG SEVERX EIVER 35/ 



Thickness 

 in feet 



Spirifer aff. crispus. 



Spirifer sp. 



Retwul^r-ia septentrionalis. 



Conncardium sp. 



Liospira stevensoni. 



Gijronema speciosa. 



Diaphorostoma perforata. 



CfiUdium sp. 



Orthoceras sp. 



Huronm sp. 



Actinoceras cf, cloicei. 



Gi/cloceras sp. 



PJiragmoceras sp. 



Bronteus ekicanensis. 



Encrinurus sp. 



Leperditia hislngeri var. 

 A .short gap in exposure 

 Ekwan River limestone 



9. Limestone, yellowish gray, non-dolomitic. in thin, regu- 

 lar layers, containing TrimereUa sp. and other fos- 

 sils listed below; exposed in an arch in the north 

 bank of the river 1 to 2 miles above Limestone 

 Island : About 40 



Streptelasma sp. 



Favosites favosus. 



Favosites sp. 



Hahjsites catemdatus. 



TrimereUa ekiDanensis. 



Pentamerus sp. 



Gypidula sp. 



Atrypa cf. reticularis. 



Spirifer sp. 



Hormotoma whiteavesi. 



Hormotoma sp. 



Guronema cf. doivUngi. 

 A short gap in exposure 



8. Limestone, gray, fine grained, thin bedded, with nod- 

 ules and bands of chert in some places; containing 

 stromatoporoids and other fossils listed below; ex- 

 posed at the first rapids below the mouth of Fawn 

 River : 15 



Actinostroma sp. 



Paleofavosites aspera. 



Favosites favosus. 



Alveolites sp. 



Halysites catenulatus. 



THm erella ekicanensis. 



Stropheodonta cf. philomela. 



