Middle To Upper Mississippian Chainman Shale

Millard County, Utah

Gastropods from the middle to upper Mississippian Chainman Shale, western Millard County, Utah, not far from the eastern border of White Pine County, Nevada. Photographs (specimens and list of scientific names) courtesy Mackenzie Gordon Jr. and Ellis L. Yochelson; I edited and processed the images through photoshop.

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