| Diplacanthus Temporal range:
| |
|---|---|
_(15149695488).jpg)
| |
| Fossil specimen of D. crassissimus (=D. striatus) | |
| |
| Life restoration | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Acanthodii |
| Order: | †Diplacanthiformes |
| Family: | †Diplacanthidae |
| Genus: | †Diplacanthus Agassiz, 1843 |
| Species | |
|
see text | |
Diplacanthus is an extinct genus of Mid to Late Devonian fish in the class Acanthodii, known as spiny sharks.