Madagascar Ammonites

Internal and external view of sectioned ammonite fossils, 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 mineral

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

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