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Fig. 12. — Group of pre- Cambrian [Etcheminiati) Animals from the 



Etcheminian. (After Matthew.) 



The name " Etcheminian " is derived from that of an ancient Indian tribe of 



New Brunswick. 



(a) Volborthella, supposed to be a Cephalopod shell. (J)) Pelagiella. (c) Ortho- 

 theca, supposed to be Pteropods. (rf) Priniiiia, an O^tracod Crustacean, [e] Obohis, 

 a Brachiopod shell. (/") Platysolenites, probably fragment of a Cystiuean. 

 (^) Globigerinse, casts of Foraminiferal shells, Etcheminian, New Brunswick. 



Fig. 13. — Arenicolites {Spiroscolex) spirala (Billings) and Aspidella 

 tenanovica (Billings), Signal Hill Series, Neitfoundland, 



64 



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