• Mesocalamites (Horsetail) 15.2 cm - Poland - Carboniferous

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    Large section of a Mesocalamites (extinct treelike horsetail) from Upper Silesia, Poland. Dates to the Carboniferous Period (Westphalian "B") - Circa 310 million years old.


    Nice detail.


    Mesocalamites: 15.2 cm x 5.4 cm

    Matrix: 15.5 cm x 10.2 cm x 2.3 cm 

    Weight: 1.01 kg