Trends expected in several photometric planes from the modelling obtained from three basic scaling relations fulfilled by real and simulated Type III S0s (dashed lines): h_i ∝ R_brkIII, h_o ∝ R_brkIII, and μ_brkIII ∝ R_brkIII. The observational relations have been assumed for the modelling (see Sect. 3.6). We have overplotted the locations expected from this modelling for 60 values of R_brkIII, but inserting typical observational errors in the scalelengths and surface brightness values at random (symbols). We have distinguished the predictions with R_brkIII < 20 kpc (crosses) from those with R_brkIII> 20 kpc (diamonds), to compare them with the distributions of the observational data (typically with R_brkIII < 20 kpc) and of our S0-like remnants (with R_brkIII> 20 kpc) in the figures above. Accounting for errors, the modelling is capable of reproducing the distributions of real data in these planes (compare with the corresponding diagrams in Figs. 5–15). (Color version online.)