Subtrees are shown for carboxysome and related clades of (a) BMC-P, (b) BMC-H, (c) BMC-Ts and (d) BMC-Tdp phylogenies from Figure 2. Clades with a predominant BMC type are indicated; BMC type abbreviations: SPU: sugar phosphate BMC, PVM: Planctomycete and Verrumicrobia BMC; MUF: Metabolosome of unknown function, MIC: Metabolosome with incomplete core, BUF: BMC of unknown function, GRM: Glycyl radical BMC (functional type nomenclature as used in [3,4]).