DENDROID GEAPTOLITES OF HAMILTON, ONTARIO. 



47 



Doctor Gurley's manuscript contains an elaborate description of 

 this species, but the description and remarks published by Doctor 

 Euedemann are more to the point and are reproduced below : 



Hall bas ijiven the follo\A'iiig diagnosife of this species : 



Stems flattened, dichotomous ; structure fibrous or plumuluse, apparently 

 composed of imbricating elongated scales or fibers which spread equally on 

 all sides. 



This coral is not abundant, though small fragments are frequently seen 

 in the slab. It is very often rei)laced by iron pyrites, and where the surface 





Fig. 59. — Inocaclis plumulosus Hall. A rather complete khabdosome. 



is exposed to weathering, the fossil soon disappears so that it is only on 

 freshly fractured surfaces that the structure is preserved. 



It is cited as occurring in the " Niagara shale at Lockport, Rochester, 

 and other places." 

 Spencer has recorded the form from the Niagaran limestone at Hamilton, 

 Ontario. 



