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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
Irregularia
Atelostomata
Spatangoida
Schizasteridae

Opissaster (23045898)

Children (10 direct children, 11 direct and indirect children):

Opissaster cotteri

Opissaster auraduensis

Opissaster cantabriae

Opissaster derasmoi (tree size 1)

Opissaster farquharsoni

Opissaster herrerae

Opissaster kugleri

Opissaster rozieri

Opissaster somaliensis

Opissaster tainui