Chaetosalpinx sibiriensis in Paleofavosites cf. collatatus, Bagovitsa A, Ukraine, Muksha subformation, Ludlow, transverse section, the arrows point to C. sibiriensis.
Chaetosalpinx is an
ichnogenus of
bioclaustrations (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.[1] They are common in
tabulate and
rugose corals from Late
Ordovician to
Devonian of Europe and North America.[1][2][3][4]
They may have been parasites.[5]