Liên kết ngoài Vi khuẩn bifidus

Terrabacteria
(BV1, BV3, BV5)
Candidate phyla
radiation

(CPR group)
"Thermotogida"
Hydrobacteria
(BV2, BV4)
"Fusobacterida"
Endoflagellata
"Elusimicrobes"
Planctobacteria
(PVC group)
FCB group
Proteobacteria
Incertae
sedis
Phyla
Genera