| Pteraspida Temporal range: Ordovician - Devonian |
|
|---|---|
| Drepanaspis gemuendina, accompanied by Tiaraspis subtilis | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Superclass: | Pteraspidomorphi Goodrich, 1909 |
| Class: | Pteraspida Goodrich, 1909 |
| Subclasses | |
Pteraspida is an extinct class of early jawless fish. The fossils show extensive shielding of the head. Some species may have lived in fresh water. The taxon contains the subgruops Heterostraci, Astraspida, Arandaspida.