Loveniidae

Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Atelostomata
Ordo: Spatangoida
Subordo: Micrasterina
Familia: Loveniidae
Genera: Atelospatangus - Breynia - Echinocardium - Gualtieria - Hemimaretia - Hemipatagus - Laevipatagus - Lovenia - Pseudolovenia - Semipetalion

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License