| Stemmatodus Temporal range: | |
|---|---|
| Fossil of S. rhombus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Pycnodontiformes |
| Family: | †Pycnodontidae |
| Genus: | †Stemmatodus Heckel,1856 |
Stemmatodus is an extinct genus of prehistoric ray-finned fish that lived in Europe during the Early Cretaceous approximately 129 to 125 million years ago.