Clypeaster grandiflorus, Photo: Michael Lahanas
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Gnathostomata
Ordo: Clypeasteroida
Subordo: Clypeasterina
Familia: Clypeasteridae
Subfamilia: Clypeasterinae
Genus: Clypeaster
Species: †Clypeaster grandiflorus
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