| Triodus Temporal range: Permian |
|
|---|---|
| Triodus. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Xenacanthida |
| Family: | Xenacanthidae |
| Genus: | Triodus |
Triodus is an extinct genus of xenacanthidan shark that lived in the Permian. It was a freshwater shark, and fossils have been found in Germany.