Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Rhizaria
Foraminifera
Globothalamea
Rotaliida
Rotalioidea (Rotaliacea)

Elphidiidae (8775109)

Children (3 direct children, 248 direct and indirect children):

Elphidium (tree size 149)

Elphidiinae (tree size 91)

Faujasininae (tree size 5)