Locality
From Hollick (1930) (p. 72)
"Yukon River, north bank, at Fossil Bluff, about 6 miles above Nahochatilton (original No. 2AC238); collected by A. J. Collier and Sidney Paige in 1902 (lot 2962)."
Description
From Hollick (1930) (p. 72)
"Leaf of unknown shape and size, entire; base wedge shaped, abruptly cuneate; midrib straight; nervation pinnate-dictyodrome; secondary nerves camptodrome at a considerable distance from the margin, giving off fine nervillose branchlets that connect with the tertiary nervation and form a dictyodrome network of polygonal areolae that successively diminish in size and ultimately merge into the margin.
Remarks
From Hollick (1930) (p. 72)
"This leaf, although represented by only a fragmentary specimen, is so remarkable for its finely developed dictyodrome system of nervation that this alone will serve to identify it in the event of more perfect specimens being collected. This character of the nervation does not appear to be exactly duplicated in any described fossil leaves, nor have I been able to compare it satisfactorily with that of any living genus. The species may possibly, however, be identical with Ficus austiniana Lesquereux (1884 [1885]) (p. 14, pl. A, fg. 5), and Lesquereux (1893) (vol. 3, pt 1, p. 14, pl A, fig. 5) from the Dakota sandstone of Minnesota. The nervation is closely similar; but Lesquereux's figure represents a specimen even more fragmentary than ours, and satisfactory comparison is impossible."