Symmoriidae
| Symmoriidae Temporal range: Devonian to Carboniferous,  | |
|---|---|
| Symmorium. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Chondrichthyes | 
| Order: | †Symmoriiformes | 
| Family: | †Symmoriidae Dean, 1909 | 
| Genera | |
Symmoriidae is an extinct family of cartilaginous fish belonging to the order Symmoriiformes. Members of the family are known from the Devonian and Carboniferous periods.