A late Frasnian (Late Devonian) radiolarian, sponge spicule, and conodont fauna from the Slaven Chert, northern Shoshone Range, Roberts Mountains allochthon, Nevada
Micropaleontology
By: S. Q. Boundy-Sanders, Charles Sandberg, B. L. Murchey, and A. G. Harris
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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.
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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