Distribution of galaxies in supergalactic coordinates (points) and the visit map detected using our marked point process. The thickness of the slice is 4 Mpc around SGX  =  0. Red points show galaxies in the Coma cluster (see also Fig. 7), other coloured points show galaxies in other groups with at least five members, and grey points show all remaining galaxies. Galaxies are divided into groups as explained in Sect. 3.