5 
Good collecting in the 2-foot Euphemus bed is found upon both sides 
of the road about a tenth of a mile west of the bridge over Cascade river, 
at locality 10, section 1. The white colour of this bed renders it very con- 
spicuous. About half the distance from this bed to the bridge the upper 
2 feet of a prominent ridge affords numerous fossils. This ridge extends 
both north and south of the road. 
Rundle Formation (Pennsylvanian and Mississippian ) 
Thin-bedded, light to dark grey limestones, fine-grained beds altern- 
ating with coarse-grained, often being respectively chert-bearing and chert- 
free. The formation below this becomes more and more shaly until it 
merges with the Banff shale. 
The fine to medium-grained limestones are usually fossiliferous, in 
many cases abundantly so. The coarse-grained beds are, as a rule, free 
from any identifiable fossils except crinoid joints. 
The separation of the Rundle formation into a Pennsylvanian and a 
Mississippian division is drawn in section 2 at the base of locality 20. In 
this locality occurs Spirifer rockymontanus , and below in locality 22 there is 
an abundance of Mississippian species. No fossils were collected from 
locality 21, though our field notes speak of their presence and in such 
terms as to suggest that they are Mississippian, hence the division line is 
provisionally placed between localities 20 and 21. 
Pennsylvanian Beds (Upper Two-thirds) 
These beds of Lower Pennsylvanian age contain very many fossils, 
the most abundant of which are: Lophophyllum profundum, Campophyllum 
torquium, TriplophyUum minnewankensis, Lilhostrotion whitneyi , L. penn- 
sylvanicum , Aulopora curm, and Syringopora pennsylvanica, among corals; 
Sehellwienella lata, Productus coloradoensis, P . cora, Pustula punctata, 
Spirifer rockymontanus, S. earner atus, Reticularia setigera, and Composita 
ozarkana, among brachiopods. 
Excellent localities for the collection of these fossils occur upon both 
sides of Cascade river about a mile north of its junction with Devils creek, 
also upon the western slope of mount Aylmer. 
Mississippian Beds ( Lower One-third ) 
These strata of Lower Mississippian age contain numerous examples 
of the following species: Syringopora surcularia, Sehellwienella inequalis , 
Productus fernglenensis, P. gallatinensis , P. blairi, P. minnewankensis, P. 
burlingtonensis, Dielasma chouteauensis, Spirifer centronatus, S . striati- 
formi8, Pseudosyrinx gigas, Spirifer ella minnewankensis, Reticularia pseudo - 
lineata, Squamularia depressiplicata , Eumetria marcyi, Cliothyridina 
lata, Composita humilis, Myalina mississipp iensis, Loxonema rocky- 
montanum, and Paleocapulus equilatera. 
Fossils are abundant and easily collected upon the north side of the 
lake just east of the hamlet of Minnewanka. The first prominent ridge 
crossed in following the trail eastward contains the most prolific of these 
Mississippian beds noticed. 
