Mesacanthus
| Mesacanthus Temporal range: Devonian | |
|---|---|
| Life reconstruction of M. pusillus | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Acanthodii |
| Order: | †Acanthodiformes |
| Family: | †Mesacanthidae |
| Genus: | †Mesacanthus Traquair, 1888 |
| Species | |
| |
Mesacanthus ('middle spine') is an extinct genus of acanthodian fish from Devonian Scotland. It is among the more primitive of the Devonian acanthodians.