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Sea Urchin Fossil

DSC_7634a.JPG Australasian tektitesThumbnailsPecopteris Fern FossilAustralasian tektitesThumbnailsPecopteris Fern FossilAustralasian tektitesThumbnailsPecopteris Fern Fossil

Archaecidaris, Carboniferous, Brown County, USA

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Mojca Vilfan
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