Selections of Thamnos, Sequoia, Gaia Enceladus (GE), and low-energy (LE) samples in pseudo-Cartesian velocity space, with ${\tilde{v}}_x$ and ${\tilde{v}}_y$. Stars with 6D information that belong to the aforementioned structures are shown as coloured markers. The polygons are chosen to select each structure in this space, where the 6D stars pile up, whilst reducing contamination from other structures. The background sample in grey is our full 6D halo sample. Those stars with |V-V_LSR| < 210 km/s (i.e. the disc and hot thick disc) are shown with the black contours at levels of 20%, 68%, 95%, and 99%. The LE sample was defined in v_x − v_y space using the same box selection as shown here and used to select stars that are offset in v_y from Thamnos and in v_x from Gaia Enceladus.