FCB superphylum

FCB
Bacteroides spp.
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Superphylum: FCB
Phyla
Synonyms
  • Sphingobacteria Cavalier-Smith, 1987

The FCB is a proposed superphylum of bacteria named after the main member phyla Fibrobacterota, Chlorobiota, and Bacteroidota. The members are considered to form a clade due to a number of conserved signature indels.

Cavalier-Smith calls the equivalent grouping a phylum by the name of Sphingobacteria. It contains the classes Chlorobiota, Fibrobacterota, Bacteroidota, and Flavobacteria. However, this megaclassification is not followed by the larger scientific community.

FCB group 16S rRNA based LTP_12_2021 GTDB 07-RS207 by Genome Taxonomy Database
FCB

"Hydrogenedentes"

"Latescibacteria (incl. "Handelsmanbacteria")

"Edwardsbacteria""

"Zixibacteria"

"Eisenbacteria"

"Krumholzibacteriota" (incl. "Delphibacteria")

"Fermentibacteria" (incl. "Aegiribacteria")

Gemmatimonadota (incl. "Glassbacteria")

"Hydrothermota" (incl. "Stahlbacteria", "Pyropristinus")

"Cloacimonetes"

Fibrobacterota (incl. "Raymondbacteria")

"Delongbacteria"

An analogous situation is seen with the PVC group/Planctobacteria.