Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Rhizaria
Radiolaria (Radiolarians)
Acantharia (Acantharea)
Arthracanthida
Sphaenacanthina

Acanthometridae (4671979)

Children (3 direct children, 7 direct and indirect children):

Acanthometra (tree size 1)

Acanthometron (tree size 2)

Amphilonche (tree size 1)