CSFD measurements and dating results for Rimae Sharp, Mairan, Harpalus, and Louville obtained by: (a) the conventional counts and (b) BCC approach. The production function (PF) of Neukum et al. (2001) is used for crater fitting, and the equilibrium function (EF) of Hartmann (1984) is shown for indicating the crater saturation situations. The absolute model ages (AMAs) derived from chronology functions (CF) of Neukum et al. (2001) and Robbins (2014) are labelled.In the plots of the BCC approach, the area values are those of the studied rille features, not those of the buffered regions (Table 1).