Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Parazoa
Porifera (Sponges)
Hexactinellid (Hexactinellida)
Hexasterophora
Lyssacinosida

Hyaloplacoida (18519875)

Children (1 direct children, 1 direct and indirect children):

Hyaloplacoida echinum