Ammonoidea
's information is
Birth and death years unknown
Ammonoids are extinct, typically coiled-shelled cephalopods composing the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which compose the clade Coleoidea) than they are to nautiluses (family Nautilidae), which they resemble. The earliest ammonoids appeared during the Emsian stage of the Early Devonian, around 410-408 million years ago, with the last
* Calculated from Wikipedia data.
Accuracy is not guaranteed.
| Ammonoids | |
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| Specimen of Pleuroceras solare, from the Lower Jurassic of Bavaria, Germany | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Clade: | Neocephalopoda |
| Subclass: | †Ammonoidea Zittel, 1884 |
| Orders | |
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