﻿Crinoid 

 (Masti- 



gocrinus) 



Brittle-star 

 (Lapwor- 

 thura 



Corals 



(Zaphren- 



tis) 



(Favosites, 



in centre 



Nautiloid 



(O. annula- 



tum) 



Sea- 

 scorpion 

 (Euryp- 



terus) 



Crinoid 



(Perie- 

 chocrinus) 



SILURIAN MARINE LIFE 



