"The black pieces are mostly trilobite fragments. They preserve differently due to the fact they are composed of chitinous calcium phosphate. This is a very common preservation for trilobites in the Upper Ordovician in Kentucky."
Thursday, September 26, 2013
Other Side
"The black pieces are mostly trilobite fragments. They preserve differently due to the fact they are composed of chitinous calcium phosphate. This is a very common preservation for trilobites in the Upper Ordovician in Kentucky."
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