It is however not followed by the larger scientific community. The group is commonly referred to as the "FCB group" with the rank of superphylum and the subdivisions are of the rank phylum and are referred to as:
Chlorobi (Chlorobea in Cavalier-Smith megaclassification)
Bacteroidetes, which differs from Cavalier-Smith megaclassification as it is composed of the classes Bacteroidia (equivalent to Cavalier-Smith's Bacteroidetes), Cytophagia and Flavobacteria and Sphingobacteria
^Gupta, R. S. (2004). "The Phylogeny and Signature Sequences Characteristics ofFibrobacteres,Chlorobi, andBacteroidetes". Critical Reviews in Microbiology. 30 (2): 123–143. doi:10.1080/10408410490435133. PMID15239383.