Lindblad diagram of the Splash and Erebus populations. Top and middle panels highlight the probability density of the Splash and Erebus stars, respectively. Bottom panel shows the histogram of angular momentum, L_Z, for stars with binding energy between −1.7 and −1.9 × 10⁵ km⁻², approximately where most stars are concentrated. The histogram is well fit by a bi-modal Gaussian distribution (in black). One peak is dominated by Splash stars (solid bright red line) and the other by Erebus (dashed dark red line).