Septalites
| Septalites Temporal range:  | |
|---|---|
| Septalites septatus from the Silurian of Gotland. | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | incertae sedis | 
| Class: | |
| Order: | |
| Family: | Cornulitidae† | 
| Genus: | Septalites† Vinn, 2005 | 
Septalites is a genus of cornulitid tubeworms. Their shells lack vesicular wall structure and have a smooth lumen filled with numerous transverse septa. They are externally covered with transverse ridges. Their fossils are known only from the Silurian of Gotland.