Madagascar is celebrated for its stunning fossilized ammonites, which date back to the Jurassic and Cretaceous periods. These ancient marine mollusks often have an agatized form, with internal chambers preserved as hollow cavities lined with mesmerizing crystals. When cut and polished, these fossils reveal intricate inner details and vibrant mineralizations that captivate collectors and scientists alike.
Most of the polished ammonites from Madagascar hail from the Cretaceous period, but the ones displaying vivid orange, yellow, or pink hues trace back to the Late Jurassic (Oxfordian Stage)—nearly 50 million years older. These exquisite fossils not only provide a window into Madagascar's rich geological past but also enhance our understanding of marine life from millions of years ago.
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