59 
Cycadophyta 
Genus, pseudocycas Nathorst 
Pseudocycas unjiga (Dawson) Berry 
Cycadites unjiga Dawson, Trans. Roy. Soc., Canada, vol. 1, sec. 4, p. 20, 
PI. 1, figs. 2, 2a (1882), (?) Penhallow, Idem., 3d ser., vol. 1, sec. 4, 
p. 308 (1907). 
Cycadites pungens Lesquereux, Flora Dakota Group, p. 30, PI. 2, fig. 6 
(1892). 
Pseudocycas unjiga Berry, Am, Jour. Sei., vol. 2, p. 184, figs. 1-3 (1921). 
This interesting species is the commonest form in the Upper Blairmore. 
It was described from the Dunvegan sandstone of British Columbia, and 
to it should be referred the Dakota sandstone form which Lesquereux 
described as Cycadites pungens, as the latter is identical with the type. 
There is an unsettled question as to whether Pseudocycas unjiga may not 
be identical with the Greenland type of the genus. It is at any rate very 
close to the Greenland form. Penhallow recorded this species from the 
Lower Cretaceous along the International Boundary and I have queried 
this citation since Penhallow' s material probably represented Dioonites 
buchianus abietinus which is superficially like Pseudocycas unjiga and which 
occurs in the Lower Blairmore as well as elsewhere in the Lower Cretaceous. 
This species, if well preserved, is a diagnostic form of the Upper 
Blairmore, its chief distinguishing feature being the double midrib of the 
pinnules with the stomata confined to the band or groove between the 
two. Unfortunately for stratigraphic purposes its general proportions 
are much like the Dioonites mentioned in the preceding paragraph, and 
unless the preservation is good or the material is examined very critically, 
the thick midrib of the pinnules of the latter does not look different from 
the double midrib of the Pseudocycas. 
Genus, podozamites F. Braun 
Podozamites latipennis Heer 
Podozamites latipennis Heer, Flora Fossilis Arctica, vol. 6, ab. 2, p. 42, PL 
14, figs. 1-9; PI. 15, figs. 2a-3b (1884). 
Yelenovsky, Gym. bohm. Kreidef., p. 10, PI. 2, fig. 6 (1885). 
Bayer, Sitz. k. bohm. Gesell. Wiss., 1899, No. 26, p. 26, PL 2, fig. 3 
(1900). 
Fric and Bayer, Archiv. Naturw. Landes. Bohm., Bd. 11, No. 2, p. 90, 
fig. 40 (1901). 
The type locality for this species was the Atane beds of western 
Greenland. It has been recorded from the Cenomanian of Bohemia, and 
doubtfully from the Kootenay of Montana. 1 The species has little about 
it of really specific value and it is of only slight stratigraphic significance, 
since it is scarcely to be distinguished from what has been called Podozamites 
marginatus Heer 2 , Podozamites tenuinervis Heer 3 , and Podozamites knowltoni 
Berry. 4 
1 Weed, W. H.: Geol. Soc, Am., Bull., vol. 3, p. 323 (1892). 
2 Heer, O.: Flora Fossilis Arctica, vol. 6, ab. 2, p. 43, PI. 16, fig. 10 (1882). 
* Heer, O.: Idea , p. 44, PI 16, fig. 9. 
* Berry, E. W.: U.S. Geol. Surv., Prof. Paper 84, p. 16, PI. 4, fig. 6 (1914). 
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