| Lyelliceratidae Temporal range:
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|---|---|
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| Fossil of Lyelliceras lyelli | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Superfamily: | †Acanthoceratoidea |
| Family: | †Lyelliceratidae Spath, 1921 |
Lyelliceratidae is a family of ammonites belonging to the superfamily Acanthoceratoidea.
These cephalopods were fast-moving nektonic carnivores. They lived in the Cretaceous period (109.0 to 94.3 Ma).[1]