Symphysurus
| Symphysurus Temporal range: | |
|---|---|
| Symphysurus fossil from the Ordovician period, Iran | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Asaphida |
| Family: | †Nileidae |
| Genus: | †Symphysurus Goldfuss, 1843 |
Symphysurus is a genus of trilobite of the Asaphida order. These fast-moving nektonic carnivores lived in the Ordovician period