Related how?

Biota (Life)
Prokaryotes (Prokaryota)
Bacteria (Bacterium)
Negibacteria (Rjheekñndd)
Proteobacteria (Purple bacteria & relatives)

Zetaproteobacteria (3329480)

Children (1 direct children, 4 direct and indirect children):

Mariprofundales (tree size 3)