Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Parazoa
Porifera (Sponges)
Cellularia
Demospongiae (Demosponge)
Heteroscleromorpha
Tetractinellida
Astrophorina

Theonellidae (4119809)

Children (8 direct children, 80 direct and indirect children):

Discodermia (tree size 36)

Theonella (tree size 23)

Racodiscula (tree size 10)

Manihinea (tree size 2)

Siliquariaspongia (tree size 1)

Acrochordoniinae

Theonellinae

Phymaplectiinae