Transactions of The Royal Society of Canada 
SECTION IV 

SERIES III SEPTEMBER 1916 WOps Dk 


Notes on Cambrian Faunas, No. 12 
By G. F. MATTHEW, LL.D., D.Sc. 
(Read May Meeting, 1916) 
In previous volumes of the Proceedings and Transactions of this 
Society the writer, under the above heading, has described various 
forms of Cambrian animals, and proposes in this article to offer some 
remarks on the Physics and Ecology of the Cambrian rocks in Eastern 
Canada. 
On the relation of the Cambrian faunas in Eastern Canada to the aspect 
of the Earth’s surface in that region. 
In the remarks that follow I shall confine myself chiefly to what 
was known to English geologists as “Lower Cambrian” and which in 
this region as in England is separated from the Upper Cambrian by 
a great mass of coarse measures, there known as the “‘Lingula flags,’’— 
measures which both there and in Eastern Canada are marked chiefly 
by the presence of the genus Lingulella. So great is this mass in the 
St. John basin of Cambrian rocks that it equals in bulk all the other 
Cambrian sediments there. Nevertheless it allows of a fairly full 
representation of the Cambrian faunas in the underlying and over- 
lying beds as will be seen by the accompanying table. 
Sec. IV, Sig. 1 
