Parameter space of the CRISTAL sample in terms of surface densities of star formation rate (Σ_SFR, left) and baryons (Σ_bar, right). For comparison, the z ∼ 2 MS galaxies observed in Hα (blue circles) and CO (red hexagons) by Nestor Shachar et al. (2023) are also shown. The inset of the left and right panels show the SFR-M_⋆ and [C II]-sizes-M_⋆ distributions of CRISTAL (green contour) and other studies at z ≳ 4 (yellow diamonds) (Neeleman et al. 2020; Rizzo et al. 2020, 2021; Fraternali et al. 2021; Herrera-Camus et al. 2022; Parlanti et al. 2023; Roman-Oliveira et al. 2023), respectively. The solid line in the left inset is the MS relation from Speagle et al. (2014) at z = 5, with the shading representing ±0.5 dex offset from the relation. For the purposes of illustration, the values of CRISTAL shown on the plots are adopted from ALPINE (Béthermin et al. 2020; Faisst et al. 2020a; Le Fèvre et al. 2020). CRISTAL provides a higher-resolution sample of MS SFGs that fills up the parameter space currently poorly explored by existing z ≳ 4 samples observed with [C II], which predominantly comprises starburst and compact galaxies.