Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Rhizaria
Radiolaria (Radiolarians)
Polycystine (Polycystinea)
Spumellaria
Spongodiscidae

Spongobrachium (50677193)

Children (3 direct children, 3 direct and indirect children):

Spongobrachium pentagrama

Spongobrachium froudum

Spongobrachium toxon