35 
10 mms. in width and has irregularly undulate margins. There are no 
traces of fructifications. Remains of this general type, all smaller than 
the present form, are found in the Jurassic of England, France, and Oregon; 
in the Wealden of England 1 ; and in the Patapsco 2 , the upper formation of 
the Potomac Group in Maryland. 
Genus, sagenopteris Presl 
Sagenopteris elliptica Fontaine 
Plate IV, figures 4, 5 
Sagenopteris elliptica Fontaine, U.S. Geol. Surv., Mon. 15, p. 149, PI. 28, 
figs. 9, 11-16 (1890); in Ward, Idem., Mon. 48, p. 236, PI. 65, 
figs. 39, 40 (1906). 
Berry, Lower Cretaceous, p. 287, tf. 4 (1911). 
Cheiropteris spatulata Newberry, Am. Jour. Sci. vol. 41, p. 199, PI. 14, figs. 
1, 2 (1891). 
Stipe, stout, apparently crowned with five lanceolate to ovate or 
obovate leaflets, very variable in size, 3*5 to 10 cms. in length by 0*7 to 
3*5 cms. in maximum width, the uppermost pinnule being the largest. 
Midrib broad proximad, disappearing by branching distad. Lateral veins 
diverging at acute angles, varying greatly in the size of the sub-rhombic 
areolation formed by their anastomoses. 
In the east this species is commonest in the older Potomac. It is 
known from the Knoxville and Kootenay formations and has been reported 
from the Lower Cretaceous of Queen Charlotte islands 3 . It has not been 
discovered in the Kootenay of the Crowsnest Pass region, where the genus 
is unrepresented, but is rather common in the Lower Blairmore, being 
especially abundant and large in size at locality CH4. 
Occurrence. Localities CH4, CH7, and DB1. 
Sagenopteris canadensis Berry 
Sagenopteris canadensis Berry, Bot. Gaz., vol. 74, pp. 329-331, fig. 1 (1922). 
Sporocarp hard and resistant; stalked; bean shaped; gibbous; 
slightly flattened at the sides; more recurved and slightly more narrowly 
rounded at one end; about 5 mms. in length, and about 3 mms. in height; 
with 15 or 16 transverse encircling veins, which are impressed, and appear 
as sulcae in the material, retaining more carbonaceous matter because 
thicker, and appearing blacker than the balance of the sporocarp wall; 
bands between these impressed veins fighter in colour, and with a thin 
central fine more or less developed. 
These sporocarps are associated in the Lower Blairmore with the three 
species founded on fronds. The question of the botanical relationship of 
Sagenopteris has been debated for years. The genus was founded by 
Presl in 1838 for a Rhaetic (Upper Triassic) form from south Germany, 
and since that time a considerable number of species have been described 
from all over the world, all coming from rocks of Mesozoic age. Nearly 
1 Seward, A. G'.: Wealden Flora, pt. 1, p. 18, PI. 1, fig. 3 (1894). 
* Berry, E. W.: Am. Jour. Sci., vol. 50, p. 50, fig. 2 (1920). 
• Pennajlow, D, P.: Trans. Roy. Soe., Canada, 2nd eer,, vol. 8, see. 4, p. 41 (1002). 
