1891 I 
211 
[Marcou. 
urus? and Asapkus ? they all belong to new species, not found 
anywhere in the typical Champlain system of North America or 
of Europe, and the only inference which we can safely draw from 
their presence in the Upper Taconic strata, is, that those gen" 
era made their apparition in the Nevado-Canadian sea sooner 
than in the Acadio-Russian ocean, that they migrated from ihe 
western sea into the eastern sea, and that we have there another 
example of the apparition of the prophetic types and colonies of 
Barrande during the primordial period. 
Besides we have a striking example of the co-existence in Eu- 
rope of the trilobitic genera Asaphus and Cheirurus , with the 
Olenus , Agnosias, and Conocephalites at Hoff in Bavaria, just as 
we have at Quebec-city, at Pointe-Levis, at Phillipsburgh and 
many other places in the states of Vermont and New York, the 
trilolites genera Asaphus, Cheirurus , Ampyx, Illaenus, Trinucleus , 
which have co existed with Conocephalites , Agnostus, Dikelocepli- 
alus , and Bathyurus. Barrande, Linnarson and others well 
qualified to express an opinion on the primordial fauna, have no 
hesitation in placing the strata of Hoff in the Upper Taconic of 
Europe, and not in the second fauna. 
If the normal and original Champlain system, as it exists at 
Trenton falls and Chazy village, was at a great distance from 
the citadel of Quebec, say 5,000 or 6,000 miles, some hesitation, as 
regards the synchronizing of the strata of the city of Quebec, 
may be understood, to a certain extent, although the Champlain 
system never shows in the Lake Champlain area and around Mon- 
treal and Ottawa, a mixture of primordial forms, such as : Bath- 
yurus, Dikelocephalus, and Conocephalites. But in the vicinity of 
Quebec, we possess the normal and typical Champlain system, at 
a distance less than a cannon shot — only two miles ; and if we 
reconstruct the deposits as they existed at the time of the end of 
the Champlain period, before any erosion or denudation took 
place, when the sea had just retired, then we see that the Cham- 
plain strata were deposited over a great part of the Upper Ta- 
conic, and are consequently younger than the Quebec-city and 
the Point L6vis rocks, which were then already a terra ftrma 
and formed in their prolongation under water the beds of the 
Champlain sea in the area of Quebec and its environs. 
I have tried to reconstruct the deposits, as they were at the 
end of the Champlain period, in a “Section from Montmorency 
