Pecopteris sp. Fern (8.3 cm) - Poland - Carboniferous.
Good detail. Pecopteris sp. fern from Upper Silesia, Poland. Dates to the Carboniferous Period (Westphalian "B") - Circa 310 million years old.
Nodule: 8.3 cm x 4.2 cm x 1.3 cm
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