Gravesia (ammonite)
| Gravesia Temporal range:
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|---|---|
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| Specimen of Gravesia gigas | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Superfamily: | †Perisphinctoidea |
| Genus: | †Gravesia |
Gravesia is an extinct genus of ammonite known from the Upper Jurassic (Kimmeridgian-Tithonian stages) of Europe.[1][2]
References
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