Silberling, N J. (1982). Middle Triassic molluscan fossils of biostratigraphic significance from the Humboldt Range, northwestern Nevada: Taxonomic and superpositional documentation of an unusually complete faunal succession. Washington, DC: U.S. Gov. Print. Off.

Middle Triassic molluscan fossils of biostratigraphic significance from the Humboldt Range, northwestern Nevada : Taxonomic and superpositional documentation of an unusually complete faunal succession / by N. J. Silberling and K. M. Nichols . — Washington, DC : U.S. Gov. Print. Off, 1982. — V, 77 S., Bl. 4 - 38; Ill., graph. Darst., Kt; 3 Kt.-Beil. — (Geological Survey professional paper ; 1207)

Silberling, N. J. Middle Triassic Molluscan Fossils of Biostratigraphic Significance From the Humboldt Range, Northwestern Nevada: Taxonomic and Superpositional Documentation of an Unusually Complete Faunal Succession.Washington, DC: U.S. Gov. Print. Off, 1982.