coelomoron coelomoron coelomoron is a genus of cyanobacteria belonging to the family merismopediaceae. coelomoron scientific classification domain: bacteria phylum: cyanobacteria class: cyanophyceae order: synechococcales family: merismopediaceae genus: coelomoronbuell, 1938 the species of this genus are found in europe. species: coelomoron pusillum (goor) komárek coelomoron tropicale senna et al.