Slices through the three-dimensional density field of the Supergalactic plane at different cosmic epochs as indicated in the respective panels. The sequence of plots represents a plausible formation history of structures in the Supergalactic plane. Initially, proto-structures arise from almost homogeneous matter distributions forming, through gravitational interaction, the cosmic web of clusters and filaments. To illustrate that this formation history yields actually observed structures we overlay the density field with galaxies of the 2M++ survey in the lower right panel. It can be seen that the galaxies in the Supergalactic plane trace the recovered density field.