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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
Holasteroida
Meridosternata
Urechinina
Urechinidae

Cystechinus (18584329)

Children (5 direct children, 5 direct and indirect children):

Cystechinus wyvillii

Cystechinus giganteus

Cystechinus loveni

Cystechinus clypeatus

Cystechinus vesica