Description. The colonies of this ichnotaxon are oriented parallel in some tens of microns distance below the substrate and are connected to the latter in regular intervals by short side branches (Fig. 7G-H). However, the three-dimensional colony architecture
 (Fig. 7G) is often lost during the preparation due to collapse. The galleries are of uniform diameter (2-3 µm) and at some terminations bear the diagnostic spherical to pear-shaped cavities of 20-25 µm in diameter (Fig. 7H).