Schematic representation of the evolutionary paths driven by our dry intermediate and minor merger experiments along the sequence of S0 Hubble types. Bulge-to-total luminosity ratios increase towards the left, accordingly to the evolution produced by our simulated mergers. Our models show that minor mergers can induce the evolution of S0b → S0a and of S0c → S0b, reproducing the global bulge-to-disk structural relations found in real S0’s. The revised Hubble tuning fork plotted in the figure is inspired in Fig. 1 by Kormendy & Bender (2012).