The Utica Terrane in Canada. 937 
3. Orthograptus quadrimucronatus, Hall. 
3. Climacograptus Scharenbergi ? Lapw. 
5. Endoceras proteiforme, Hall. 
6. Triarthrus Becki, Green. 
The Utica is alsoseen to crop out at and above Longueuil 
and then sweep round to the south by Laprairie, and is then 
overlaid by the Hudson River shales of Chambly, St. Hya- 
cinthe, &c. Its measures have been examined by Dr. 
Ells in the 4th Range, near Clarenceville, Que., during the 
summer of 1891, who made an interesting collection, in 
which the following fossils were detected :—Cyathohhycus 
reticulatus, Walcott, Climacograptus sp., Orthograptus quadri- 
mucronatus, Hall, E’ndoceras proteiforme, Hall, and Triarthrus 
Becki, Green. 
Near Lacolle, Que., one-eighth of a mile west of the 
Richelieu River Bridge Dr. Ells also obtained Orthograptus 
quadrimucronatus, Hall, and Triarthrus Becki, Green, which 
serve Clearly to show that the Utica proper is here 
developed. About half a mile east of this village, however, 
and in the river alongside the road to Grand Trunk Station, 
the same gentleman has brought in a suite of specimens 
which yielded the following forms on examination :— 
. Clumacograptus bicornis ? Fall. 
. Diplograptus cf. D. mucronatus. Hall. 
. Leptzna sericea, Sowerby. 
. Triarthrus Becki, Green. 
South of here the belt of the Utica crosses the international 
boundary line, as stated above, and curving south, west and 
then trending north crosses the waters of Lake Ontario to 
reach the Province of that name—forming a belt of several 
miles in breadth—whose strata are almost horizontal with 
a gentle almost imperceptible dip to the southwest. 
Along the line of the Grand Trunk Railway, in some low 
cuttings, as well as in a number of localities between the 
lake and the track where openings were made for quarry 
and other purposes the Utica may be seen. About Oshawa 
and Bowmanville, the black bituminous and brittle shales of 
this terrane are evident and fossiliferous. 
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