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Fossil Ammonite (Perisphinctes, Jurassic, Madagascar)

$15.00 USD

This perfectly coiled fossil ammonite has been replaced by calcite and has a chalky white to gray coating.  The inner part of the shell has been replaced by more crystalline calcite.  Perisphinctes sp, from the Jurassic of Tulear, Madagascar.

Miniature specimen: About 45mm x 39mm x 20mm (1.8" x 1.5" x 0.8")

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