Sundayichthys
| Sundayichthys Temporal range: | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Palaeonisciformes |
| Genus: | †Sundayichthys Gardiner, 1969 |
| Type species | |
| Sundayichthys elegantulus Gardiner, 1969 | |
Sundayichthys is an extinct genus of prehistoric bony fish that lived during the Carboniferous period (Visean age) in what is now South Africa. Fossils were recovered from the Upper Witteberg Series.