Acanthaecites
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| Acanthaecites Temporal range: | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Oppeliidae |
| Genus: | †Acanthaecites Rollier 1909 |
Acanthaecites is an extinct cephalopod genus belonging to the ammonoid family Oppeliidae first described by Rollier in 1909.[2] Acanthaecites both appears and disappears from the fossil record during the Callovian stage of the Jurassic Period.
The shell of Acanthaecites is small, globose and smooth except for a median ventral row of distinct sharp serrations.