Related how?

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

Spirillaceae (7577827)

Children (2 direct children, 89 direct and indirect children):

Spirillum (tree size 3)

Desulfovibrio (tree size 84)