Madagascar Ammonites

Internal views of sectioned ammonite fossils, both Perisphinctes sp. from Madagascar, Jurassic Period. The view reveals the internal chambers created by the animal as it grew. In the fossil the chambers have become filled with crystallized minerals

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Ammonite Ammonites Ammonoid Ammonoidea Cephalopod Cephalopoda Chambers Crystal Deposits Extinct Fossil Index Internal Jurassic Lines Madagascar Mollusca Mollusk Paleontology Period Perisphinctes Planispiral Polished Section Sectioned Septa Septum Spiral Suture

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