''Chaetosalpinx'' is an ichnogenus of

bioclaustration Bioclaustration is kind of interaction when one organism In biology, an organism () is any living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy ...

s (a type of trace fossil). ''Chaetosalpinx'' includes straight to sinuous cavities that are parallel to the host's axis of growth. The cavity is circular to oval in cross-section and it lacks a wall lining or floor-like tabulae. They are common in tabulate and

rugose corals The rugosa, also called the tetracorallia or horn coral, are an extinct order of solitary and colonial corals that were abundant in Middle Ordovician to Late Permian seas. Solitary rugosans (e.g., '' Caninia'', '' Lophophyllidium'', '' Neoza ...

from Late Ordovician to

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

of Europe and North America. They may have been parasites. Chaetosalpinx sibiriensis02

References

{{Taxonbar, from=Q5066726 Trace fossils Silurian animals Devonian animals Late Devonian animals