Fig. 12. — Group of pre- Cambrian {Etcheinhiian) 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. {l>\ Pelagiella. (c) Ortho- 

 theca, supposed to be Pteropods. {d\ Primitia, an O^tracod Crustacean, [e) Oboius, 

 a Brachiopod shell. {/) Platj'solenites, probably fragment of a Cystideaii. 

 {g) Globigerinae, casts of Foraminiferal shells, Etcheminian, New Brunswick. 



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



tenanovica (Billings), Signal Hill Series, l^eivfoundland. 



54 



