''Septalites'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

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 The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago (Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoi ...

Gotland Gotland (, ; ''Gutland'' in Gutnish), also historically spelled Gottland or Gothland (), is Sweden's largest island. It is also a province, county, municipality, and diocese. The province includes the islands of Fårö and Gotska Sandön to th ...

References

{{Taxonbar, from=Q7452046 Protostome enigmatic taxa Tentaculita Silurian animals Fossils of Sweden