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Sea Urchin Fossil

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DSC_7634a.JPG Saint Andrew's ChapelThumbnailsTraces of a permian reptileSaint Andrew's ChapelThumbnailsTraces of a permian reptileSaint Andrew's ChapelThumbnailsTraces of a permian reptileSaint Andrew's ChapelThumbnailsTraces of a permian reptile

Archaecidaris, Carboniferous, Brown County, USA