Upper Cambrian Dunderberg Shale

Eureka County, Nevada

A photograph that shows the highly fossiliferous upper Cambrian Dunderberg Shale--brownish slopes at left--in gouged fault contact with the underlying upper Cambrian Hamburg Dolomite (mostly unfossiliferous, save for a few trilobites--the more ledge-forming material at center to right of image); the specific locality is an open pit gold reclamation mine in Eureka County, Nevada, a number of miles west of the western border of White Pine County, Nevada. The Dunderberg Shale produces a really huge fauna of trilobites. Photograph courtesy Richard Baker; I edited and processed the image through photoshop.

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