306 



Heport of the State Geologist. 



Pteropoda : 



15 Styliolina fissurella. r 



Lamellibranchiata : 



47 Modiomorpha subalata. C 



50 Cypricardella bellistriata. r 



55 Palseoneilo tenuistriata. r 



58 P. emarginata. r 



65 Pholadella radiata. r 



67 Modiella pygmaea. R, 



Brachiopoda : 



71 Lingula Delia, r 



74 Orbiculoidea media. R 



82 Rhipidomella Vanuxemi. r 



93 Stroplieodonta nacrea. r 

 100 Chonetes lepida. re 

 103 Productella spinulieosta. r 

 105 Spirifer mucronatus. r 

 116 Ambocoelia umbonata. r 

 121 Athyris spiriferoides. re 

 131 Liorhynchus multicostus. c 



In the sixteen feet of shale succeeding this bed, the fossils are evenly dis- 

 tributed. The rock is an evenly laminated shale, and there are present several 

 tiers of concretions. One of these, about twenty feet below the Encrinal 

 limestone, contains Athyris spiriferoides and Spirifer mucronatus in con- 

 siderable abundance. 



The association of fossils gradually changes towards the top. In the four 

 feet overlying the Modiomorpha bed the following association occurs : 



p. Four feet of shale. 



Crustacea : 



1 Phacops rana. r 



6 Primitiopsis punctulifera. r 



Lamellibranchiata : 



46 Modiomorpha concentrica. (?) R 

 55 Palaeoneilo tenuistriata. rc 

 58 P. emarginata. rc 



