| Protaspis Temporal range: Late Emsian
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Pteraspidomorphi |
| Subclass: | †Heterostraci |
| Order: | †Pteraspidiformes |
| Family: | †Protaspididae |
| Genus: | †Protaspis Bryant, 1933 |
| Type species | |
| Pteraspis bucheri Bryant, 1932
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| Species | |
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Protaspis is an extinct genus of pteraspidid heterostracan agnathan which lived during the Early Devonian of the United States, with fossils found in marine strata in what is now Utah, Wyoming and Idaho.