USNM 37446 Sphenolepis sternbergiana (Dunker) Schenk  


Hollick (1930)

Pl. 25 Fig. 3




From Hollick (1930) (p. 60)

"Yukon River, north bank, about 8 miles below Kaltag (original No. 2AC266); collected by A. J. Collier and Sidney Paige in 1902 (lot 2984) (pl. 25, figs. 1-4). Yukon River, north bank, about 6 miles above Nahochatilton (original No. 3AH16); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3252) (pl. 25, figs. 5-6)."


Locality Map



From Hollick (1930) (p. 60)

"Sphenolepis sternbergiana (Dunker) Schenk, Palaeontographica, vol. 19, p. 243, pl. 37, figs. 3, 4; pl. 38, figs. 3- 13, 1871." (Schenk 1871)

"Muscites sternbergianus Dunker, Monographie der norddeutschen Wealdenbildungen, p. 20, pl. 7, fig. 10, Braunschweig, 1846." (Dunker 1846)



From Hollick (1930) (p. 60)

"Whatever may be thought of the identity of our specimens with the species as originally described by Dunker from the Wealden of northern Germany, there can be no doubt that they are specifically identical with many specimens subsequently referred to the species, from time to time, by other authorities.

Under the name Sphenolepidiium sternbergianum var. densifolium a number of specimens are figured by Fontaine (1889) (p. 261, pl. 118, fig. 7; pl. 121, figs. 5-5b, 7, 7a, 9, 9a; pl. 125, figs, 2, 2a; pl. 129, figs. 3, 3a; pl. 130, figs. 1, 1a; pl. 131, figs. 1-1c, 3, 3a; pl. 132, fig. 4) from the Potomac group of Virginia, certain of which (pl. 118, fig. 7; pl. 121, fig. 9; pl. 131, fig. 3) are undoubtedly identical with our specimens from Alaska; and more recently, under the name Sphenolepis sternbergiana (Dunker) Schenk, the species was described and figured, by Berry (1911) (p. 435, pl. 75, figs. 1, 2) from the same group and State and also listed from Maryland and the District of Columbia. Berry includes Fontaine's variety and several species of other genera under the one specific designation, and discusses the status of the species rather fully. The specimens he figures appear, unquestionably, to be specifically identical with the Alaskan specimens.

A somewhat doubtful specimen from the Shasta series of California is referred to the species by Fontaine (1905) (p. 264, pl. 69, fig. 7) but it appears to be probable that the species is actually represented under the name Sphenolepidium oregonense Fontaine (1905) (p. 133, pl. 36, figs. 3 - 8) from the Jurassic of Oregon."