Crinoid 



(Masti- 



gocrinus) 



Corals 

 (Zaphren- 



Sea- 



scorpion 



(Kuryp- 



Cystid (in 

 centre) 

 (Lepido- 

 crinus) 



Lampshells 

 (Penta- 

 merus) 

 Trilobites 



(Sphae- 



rexochus) 



(Phacops) 



SILURIAN MARINE LIFE 



