Leptognathina

Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Asterozoa
Classis: Asteroidea
Ordo: Spinulosida
Subordo: Leptognathina
Familiae: Acanthasteridae - Asterinidae - Echinasteridae - Ganeriidae - Metrodiridae - Mithrodiidae - Poraniidae - Valvasteridae

Biology Encyclopedia

Echinodermata Images

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