Description. Featureless spherical to semi-spherical cavities, 15-60 µm in diameter, with latitudinal substrate contact characterise Planobola macrogota (Fig. 5G-H). The cavities may either be isolated or clustered in moderate numbers.

Diagnosis – (Translated from the original German; Schmidt, 1992, p. 51.) “Spheroids with latitudinal contact to the substrate surface via vertical tubules.”
Description – Coarse spherical-shaped boring system having an average diameter of 2·5 μm. Each spheroid is in latitudinal contact with the substrate though the connecting tubules were not observed.