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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)
Euechinoidea
Echinacea (Echinacea (animal))
Phymosomatoida
Stomechinidae

Polycyphus (23008478)

Children (7 direct children, 7 direct and indirect children):

Polycyphus ribeiroi

Polycyphus arabicus

Polycyphus hourcqi

Polycyphus nodulosus

Polycyphus normannus

Polycyphus parvituberculatus

Polycyphus rimuensis