Mesacanthidae
| Mesacanthidae | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | †Acanthodii | 
| Order: | †Acanthodiformes | 
| Family: | †Mesacanthidae Moy-Thomas, 1939 | 
Mesacanthidae is a family of fish that existed during the Devonian in Northwestern Europe. It is part of the order Acanthodiformes, and includes the genera of Mesacanthus, Lodeacanthus, Melanacanthus, Teneracanthus, and Promesacanthus.