phragmocone
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phragmocone |
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| navigate by keyword : ammonite animal animals background biology called camerae chamber chambered chambers coil crystalline detail display displayed divided fossil gemstones geological geology harmony inner isolated life living marine mollusc natural nature orange part pattern phragmocone red rock sand science sea septa shape shaped shell show slice sliced snail spiral stone structure swirl yellow |
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| Ammonite fossil displayed sliced on to show the inner chambers. The chambered part of the ammonite shell is called a phragmocone. It contains a series of progressively larger chambers, called camerae that are divided by thin walls called septa. Only the last and largest chamber, the body chamber, is occupied by the living sea life at any given moment. |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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