Spatial distribution of the clump (black ellipses) and YSO populations in the NGC 2264 cloud, as taken from the catalogs of Table 1 and Rapson et al. (2014). Bound clumps are represented with filled ellipses. Class 0/I (blue star markers) and Class II (red star markers) sources were identified in the area outlined by dotted black lines. The three subregions of NGC 2264 (see Sect. 3.1) are outlined and labeled in black. Clumps are much more homogeneously distributed over the NGC 2264 cloud than YSOs.