P-rich stars (black dots) plotted against a background sample in three different dynamical planes: total energy vs. angular momentum L_z (top panel), eccentricity vs. L_z (middle panel), and maximum height above the midplane Z_max vs. eccentricity (bottom panel). To separate the background sample into thin-disk, thick-disk, canonical halo, and accreted halo stars, we used the results from Hawkins et al. (2015), Masseron & Gilmore (2015), and Hayes et al. (2018) (see main text for more details). For clarity, we give a typical error bar for the P-rich stars corresponding to the average error of their parameters.