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Waldron Shale
Jeffersonville Limestone
Kope Formation
Friday, April 19, 2013
Bumastus Ioxus Trilobite Cephalon
Here is the mold of a
Bumastus ioxus
trilobite fossil cephalon found in the Racine Formation middle Silurian Period. It was found in Milwaukee County, Wisconsin, USA. Thanks to Nathan for the fossil.
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