| Archegonus Temporal range: Middle Devonian-Carboniferous | |
|---|---|
| A fossil of Archegonus nehdenensis | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Proetida |
| Family: | †Phillipsiidae |
| Subfamily: | †Archegoninae |
| Genus: | †Archegonus Burmeister, 1843 |
Archegonus is a genus of proetid trilobite that was endemic from the Middle Devonian period to the Carboniferous period in Europe and Southern China.