83 
Outside the Blairmore region and far to the north the flora collected 
by Cairnes 1 in the “Dakota” of Moose Mountain area is probably a Blair- 
more flora. J. H. Sinclair 2 has commented on this flora in Moose Mountain 
area and on its probable pre-Dakota age. The name “Blairmore” had 
already been introduced by the Geological Survey, however, in southern 
Alberta. The range and composition of the lower flora with its very rare 
angiosperms and the existence of the upper Blairmore flora with its angio- 
sperms were not known to him. 
No invertebrate fossils had been identified in the Blairmore formation 
of this region by earlier workers, but MacKenzie had noted the presence 
of fossil shells. 3 
Not much had previously been found in the Colorado shale and the 
faunas were not differentiated. Leach 4 * had reported two species from 
York and Pelletier creeks. J. S. Stewart 6 published the most extended 
list; his fossils came from the disturbed belt, east of Blairmore area. 
MacKenzie 6 had noted the presence of a few shells in the Allison 
formation. 
SUCCESSION OF FAUNAS AND FLORAS 
FEENIE LOCALITIES 
All the Jurassic faunas are contained in the Fernie formation, of which 
a number of good exposures are to be found in the Blairmore region. Thus 
there are good exposures in the valley between Bluff and Grassy mountains. 
Along the base of the north slope of Bluff mountain the basal conglomerate 
of the Fernie formation rests on Paleozoic quartzite and is overlain by 
dark grey, hard sandstone, which, on a creek flowing westward around the 
northern base of Bluff mountain, is capped by a bed of fossiliferous cal- 
careous grit, the Lille member. This bed is about 100 feet above the base 
of the formation and carries a number of fossils which are listed in the 
table page 85 under CF1. At the northern end of this valley and at the 
foot of the south slope of Grassy mountain, a good section with some 
concealed parts is exposed along a railway spur line. Here the basal 
conglomerate is not exposed, but the sandstone, which overlies it, is to be 
seen on the axis of an anticline and is overlain by the fossiliferous calcareous 
grit of the Lille member, here 6 feet thick. Fossils from this member at 
this locality are listed in the following table under CGI. Over the Lille 
member is a considerable thickness of grey and green shales with lenses 
of fossiliferous, fine-grained, hard, calcareous sandstone. These lenses 
carry a fauna listed in the table under lots CG3 to CGll. The fossils 
listed in the table under CG15 are from blocks of the Lille calcareous grit 
lying on the railway embankment and had been removed from the cut 
from which the fossils of CGI were obtained in situ. The fossils of CG14 
are from blocks of the fine calcareous sandstone lenses, thrown out in 
1 Geol. Surv., Canada, “Moose Mountain District,’* p. 54 (1907). 
* G.S. Am., Bull. 27, p. 678 (1916). 
* MacKenzie, J. D.: Geol, Surv., Canada, Sum. Kept. 1912, p. 239 (1914). 
4 Geol, Surv., Canada, Sum. Rept. 1911, p. 198 (1912). 
* Geol. Surv., Canada, Mem, 112, pp. 32, 33 (1919). 
* MacKenzie, J. D.: Geol. Surv., Canada, Sum. Rept. 1912, p. 240 (1914). 
