An ammonite fossil. Ammonites (/ˈæmənaɪts/) are an extinct group of marine invertebrate animals in the subclass Ammonoidea

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Ammonites (/ˈæmənaɪts/) are an extinct group of marine invertebrate animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids ( octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species.

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Photo credit: © David Cole / Alamy / Afripics
License: Licensed
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Keywords: ammonite, amonite, cut, fossil