LIFE IN THE EARLY CAMBRIAN 



35 



Fig. 5. — Arc luEocyathus profundus, Billings. 



Possibly a Coral of generalized type from the Lower Cambrian of L'Anse a Loup, 

 Labrador. A small specimen. 



Fig. 6. — Structures of A. profundus [magnified). 



From specimens in Peter Redpath Museum, 

 (a) Lower acervuline portion. {h) Upper part, with three of the radiating laminae 

 and section of pores, (c) Portion of lamina, with pores, the calcareous skeleton un- 

 shaded- 



