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Large Polished Nautilus #1

Regular price $365.00
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Dimensions


Weight: 846g
Size: 123mm x 93mm


Description

This beautiful polished Nautilus is from Madagascar, and has been poloshed to reveal the calcified internal structure with some of the outer shell still visible in the deep sections of the spiral. You can see the opening of the siphuncle on the curved internal chamber face, the tube the creature once used to aid with boyancy. You will receive the exact fossil in the photo.

Madagascar is famous for both nautilus and ammonite fossils, but they have a few differences to help tell them apart! While ammonites often have complex, jagged patterns (sutures) on their shells, Madagascar nautilus fossils are prized for their smooth, simple curves and thicker shells. Both lived in the same ancient tropical seas around 120 million years ago, but while ammonites went extinct with the dinosaurs, these nautiluses are almost identical to the "living fossils" still swimming today. Because they are sturdier, Madagascar nautilus fossils are often polished to a high shine, revealing beautiful honey-coloured calcite inside their chambers.

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