[dawsox] 



FOSSIL SPONGES T.jans. ISlKJ. Sec IV.— Plate. III. 



I'll:. 11. 



Imc. il. 



Fill. 10. 



1" 



h 



l"'in'. !t. I'orl.ioii ()(■ /'ii/ii iifiiiiciis Diiirsiini. 



Fi.u;. Id. Siiih with sniali spei'iiiu'ii of llynlosliiiit Mflissicii iit (u). /'nifos/iinKjid cjiatlii 

 f'untiis iii (Iji iiiul fraKiiii'iil nl ('jiiithiipliyvas a\. (c). 



Fig. ll. — Actiut/iixlicti/d liisiiiiln. Frajimt'iit of small speciiuen. partly encrusted with pyrite. 

 Fig. 12.— Debris of Prutuspuiiyia. (All luituriil size.) 



127 



^ 



