Edrioasteroid Echinoderm

Middle To Upper Devonian Guilmette Formation

Elko County, Nevada

An edrioasteroid echinodern--called scientifically Postibulla lukei--from the middle to upper Devonian Guilmette Formation, Elko County, Nevada, a number of miles north of White Pine County, Nevada. Photograph courtesy Bruce M. Bell and Morris S Petersen; I edited and processed the image through photoshop.

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