184 



SHIM BR AND GRABAU HAMILTON GROUP OF THEDFORD 





Thedfokd Region. 



Eighteen-mile 

 Creek. 







i 



IN 



ay 



o 

 W 



03 



si 



o 



Ti 



a 



o 

 a 



u 



03 CO 



— 73 

 03 



OS 



o 

 o 



li 



<B ^ 



03 



« 



Xi 



03 



u 



CO 



5 



& 



a 

 1! 



o 

 H 



03 



O 



o 



03 



O 



03 

 0) 



154. F. subtilis Hall 



W 















155. F. utriculus Rominger 







re 



? 



c 











156. F. variopora (Hall) 



w 















157. T. incrassata (Nicholson) 











Cn 













w 

 w 

 w 

 w 



















159. L. stellata Hall 













r 









160. L. subtrigona Hall 



















161. Pinacotrypa elegans (Rom.) 



162. Botryllopora socialis Nich 

























R 







r 

 r 









163. Hederella canadensis (Nich.) 



] 64. H. cirrhosa Hall 



w 



? 





c 

















165. H. filiformis (Nich. ) 







re 



S 



c 









r 





166. Hederella magna Hall 

















167. Ascodictyon fusiforme Nich 



168. Asc. stellatum Nich 



w 

 w 



w 





































Vermes : 

 169. Spirorbis angulatus Hall 













c 









170. S. arkonensis Nich 



171. S. omphalodes Nichols 







c 



? 



c 











172. S. spinuliferus Nich 



w 

 w 

 w 

 w 

 w 

 w 

 w 

 w 

 w 

 w 

 w 

















173. Autodetus lindstrcemi Clarke 













r 









174. Ortonia intermedia Nich 



















175. Funicites alveolatus Hinde 



















h 



176. F. nanus Hinde 





















177. F. palmatus Hinde 



1 78. F. tumidus Hinde 







































179. Aenonites compactus Hinde 





















180. Arabellites politus Hinde 





















181. A. similis arcuatus Hinde 





















182. Nereidavus solitarius Hinde 





















ASTEEOIDEA : 



183. Palseaster eucharis Hall 



s? 



















Blastoidea : 

 184. Pentremites lycorias Hall 







Cn 















185. Pentremitidia fllosa Whit 



w 



















186. Nucleocrinus elegans Com 







r 















187. Granatocrinus leda (Hall) 



w 

 w 



w 



w 

 w 

 w 



















188. Codaster canadensis Bill 





















189. Fleutherocrinus cassedayi Shumard 

 and Yandell. 





















Crinoids: . 



190. Gilbertsocrinus spinigerus (Hall) 



19 1 . Dolatocrinus canadensis Whit 







































192. D. subaculeatus Whit 





















193. Dolatocrinus sp 







re 















194. Megistocrinus rugosus Lyon and Cas- 

 seday 



w 

 w 



















195. Gennseocrinus arkonensis Whit 





















196. Arthroacantha punctobrachiata Wil- 

 liams 



c 



















