fossil ammonoids
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fossil ammonoids |
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| navigate by keyword : ammonites ammonoidea ammonoids amonite animals cephalopoda coleoids cretaceouspaleogene cuttlefish devonian died earliest extinct extinction fossil group last living marine mollusc molluscs nautiloids nautilus octopuses shelled species squid |
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| Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids i.e., octopuses, squid, and cuttlefish than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceousââ¬âPaleogene extinction event. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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