Pal1-I (big empty red star) α-element abundance ratios are presented together with thick and thin Galactic disk stars (shaded area) from Reddy et al. (2006, 2003). Also plotted are the Galactic OCs from Pancino et al. (2010) and the literature compilation presented in that study (filled green circles) and the GCs 47 Tuc (big filled blue squares) and M 71 (big filled pentagon) from Koch & McWilliam (2008), Ramírez & Cohen (2002). The OCs Be 22, Be 29 and Tom 2 are also marked by a plus symbol.