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A late Frasnian (Late Devonian) radiolarian, sponge spicule, and conodont fauna from the Slaven Chert, northern Shoshone Range, Roberts Mountains allochthon, Nevada

Micropaleontology
By: , , , and 

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Abstract

Co-occuring conodonts, radiolarians, and sponge spicules from the type locality of the Slaven Chert, northern Shoshone Range, Nevada, indicate that the radiolarian and sponge spicule assemblage described herein correlates with the Late rhenana conodont Zone (late Frasnian). The moderately well preserved radiolarians are the first Frasnian-age fauna described from the Western Hemisphere. They include spumellarians, Ceratoikiscum, and Paleoscenidium, and a radiolarian which we have assigned to a new genus, Durahelenifore Boundy-Sanders and Murchey, with its type species, Durahelenifore robustum Boundy-Sanders and Murchey. Sponge spicules include umbellate microscleres of the Subclass Amphidiscophora, Order Hemidiscosa, previously documented only in Pennsylvanian and younger rocks.

Suggested Citation

Boundy-Sanders, S.Q., Sandberg, C., Murchey, B., Harris, A., 1999, A late Frasnian (Late Devonian) radiolarian, sponge spicule, and conodont fauna from the Slaven Chert, northern Shoshone Range, Roberts Mountains allochthon, Nevada: Micropaleontology, v. 45, no. 1, p. 62-68.

Study Area

Publication type Article
Publication Subtype Journal Article
Title A late Frasnian (Late Devonian) radiolarian, sponge spicule, and conodont fauna from the Slaven Chert, northern Shoshone Range, Roberts Mountains allochthon, Nevada
Series title Micropaleontology
Volume 45
Issue 1
Year Published 1999
Language English
Publisher American Geological Institute
Contributing office(s) Geology, Geophysics, and Geochemistry Science Center
Description 7 p.
First page 62
Last page 68
Country United States
State Nevada
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