[Y/Mg] and [Ba/Mg] as a function of age. Sculptor binned data are blue circles. Left panels: comparison with individual Milky Way solar twin stars (gray symbols). Right panels: comparison with binned data from the Fornax dSph (pink pentagons) and the Milky Way (open diamonds) for three metallicity bins: (i) [Fe/H] >  0 (dark green), (ii) −0.3 ≤ [Fe/H] ≤ 0 (green), and (iii) [Fe/H] <  −0.3 (light green). In the case of the Milky Way, the error of mean is smaller or comparable to the symbols shown. For the dSphs, the error of the mean is shown with a y-error bar. MW references: Nissen (2015, 2016); Nissen et al. (2017) (squares); Tucci Maia et al. (2016) (hexagons); Spina et al. (2018) (pentagons); Bensby et al. (2014) (open diamonds). Fornax references: de Boer et al. (2012b) (ages); Letarte et al. (2010, 2018) (Mg, Y); Andrievsky et al. (2017) (Ba).