Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Echinodermata (Echinoderms)
Sea urchin (Echinoidea)
Cidaroidea
Cidaroida
Cidaridae
Stereocidarinae
Phalacrocidaris (18582445)
Children (2 direct children, 2 direct and indirect children):
Phalacrocidaris japonica
Phalacrocidaris catherinae