Spatial coordinates (left column), with the cluster core radii (r_c) and half-mass radii (r₅₀) indicated as black circles; relative velocity orientation (Δθ) histograms (middle column), and PARSEC ages τ_iso BP-RP against traceback to the closest approach age τ_kin,CA (right column) for λ Ori, NGC 2264 N & S, and Collinder 95 (descending rows). Cluster members with the closest approach distance within 1σ of the core radius (r_c) and with a present position outside the core radius are indicated as blue points. Other cluster members consistent with moving away from the cluster centers are indicated by red points, and cluster members not consistent with moving away from the cluster centers are indicated by black points.