USNM 37328 Sagenopteris variabilis (Velenovsky) Velenovsky  


Hollick (1930)

Pl. 2 Fig. 8




From Hollick (1930) (p. 41-42)

"Yukon River, north bank, about 10 miles below Blatchford's mine (original No. 3AH23); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3262)."


Locality Map



From Hollick (1930) (p. 41-42)

"Plate 2, Figure 8"

"Sagenopteris variabilis (Velenovsky) Velenovsky, K. bohm. Gesell. Wiss., 7th ser., vol. 3, p. 40, 1889." (Velenovsky 1889)

"Thinnfeldia variabilis Velenovsky, Die Gymnospermen der bohmischen Kreideformation, p. 6, pl. 2, figs. 1-5; pl. 3, fig. 12, Prag, 1885. (Not T. variabilis Fontaine, The Potomac or younger Mesozoic flora: U. S. Geol. Survey Mon. 15, p. 110, pl. 17, figs. 3-7; pl. 18, figs. 1-6, 1889.)" (Velenovsky 1885)



From Hollick (1930) (p. 41-42)

"This species, as depicted by Velenovsky, presents a considerable variation in the size and form of the leaves. Our specimen belongs to the spatulate type, with an obscurely defined midrib.

A fragment, referred to the species with some doubt, from the Magothy formation of Marthas Vineyard, Mass., is figured by Hollick (1902) (p. 403, pl. 41, fig. 12) but otherwise the species does not appear to be recorded from any other locality in America."