ENCR1NITES. 



121 



surface where the limestone rocks have been most 

 weathered. And, as the structure of most fossils 

 imbedded in limestones is such that they are harder 



Fig. 103. Woodocrinus macrocfactylus. 



than the limestone itself, it follows that when surface 

 weathering has gone on for some time, the fossils 

 stand out in relief. Millions of Encrinite stems 



