16 
Columnaria alveolata n. var. stellaris 
Plate III, figures 1, 2 
Massive corals, exact form not known. Corallites polygonal, small 
for the genus, diameter averaging about 2 mm. to 3 mm., walls contiguous 
but not amalgamated, as is shown by the form of weathering which leaves 
long columns broken apart but with walls intact, upon which the longi- 
tudinal strise and the growth lines are visible even in very poorly preserved 
specimens. Septa alternating, ten to twelve primary ones reaching to the 
centre, giving a well-preserved corallite a starlike opening; secondary septa 
extending to only a little distance from the wall, in many cases hardly visible. 
Tabulae about 1 mm. apart in the small section in which they are preserved. 
C. alveolata var. stellaris differs from C. alveolata proper only in the 
smaller size of the corallites, the fewer number of the septa, and the 
generally more closely placed tabulae. 
Horizon and Locality . Richmond: Beaverfoot. One-half mile east 
of the trail, Palliser pass, and between Spray and Palliser rivers, Kananaskis 
area, Rocky mountains, B.C. 
Favosites cf . favosus (Goldfuss) 
Plate III, figure 7 
It is with some hesitation that this coral is identified with these species. 
It has not previously been reported from the Ordovician, but yet the 
variations are not sufficient to differentiate it from a species which varies 
so widely in one colony. A much larger collection of material would be 
necessary to establish such variations as specific. The corallites are 
smaller than the average F. favosus , the longitudinal furrows are in many 
cases fewer than twelve; the pores in each wall are arranged in one row 
in many more cases than in two, and no wall, in the specimens at hand, 
exhibits three rows of pores. The most outstanding variation from the 
true F. favosus is the constant interspersal of small corallites between the 
larger ones, giving it the general aspect of the pores and mesopores of a 
magnified bryozoa. The small corallites seem to be similar to the large 
ones. This may not be a constant feature. It may only indicate that the 
specimens happened to come from the younger, more rapidly enlarging 
portion of the colony. Otherwise the specimens appear to agree with the 
Silurian species. Rominger, in his description of F. favosus , mentions 
transverse undulating rows of the spinulose projections forming ridges 
corresponding to the external transverse wrinkles of growth, a feature 
which is commonly very evident in the Rocky Mountain species. The 
general aspect of the specimens is that of an earlier, less highly developed, 
more primitive form of F. favosus. 
Horizon and Locality. Richmond: Beaverfoot, From the Stoddart 
Creek section, Windermere area; in the Stanford range near the head of 
Windermere creek, at 268 feet above the base of the Beaverfoot, from an 
horizon in this section in which those fossils first appear which give a 
Silurian aspect to beds containing forms of undoubted Ordovician age. 
Rocky mountains, B.C. 
