Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Coelenterata
Cnidaria (Cnidarians)
Anthozoa
Hexacorallia
Actiniaria (Sea anemones)
Nynantheae (Nyantheae)
Thenaria
Acontiaria
Metridiidae
Children (2 direct children, 2 direct and indirect children):
Isometridium richettsi
Isometridium ricketsi