Description: Short to elongate nearly cylindrical to amphora-shaped, limestone filled burrows with unornamented shafts and slightly constricted apertures, circular to slightly elliptical in a transverse section.
Selection of related publications
Männil, Ralf 1966.
Vertical burrows in Ordovician limestones of the Baltic.The organism and environment in the geological past. Ed: Hecker, R. F., pp. 200-207.