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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)
Asterozoa
Ophiuroidea (The brittle stars)
Myophiuroidea
Metophiurida
Euryophiurida
Ophiurida (Ophiurida incertae sedis)
Ophiurina

Ophiopyrgidae (56218128)

Children (15 direct children, 143 direct and indirect children):

Aspidophiura (tree size 8)

Ophiuroglypha (tree size 25)

Stegophiura (tree size 21)

Ophiogona (tree size 3)

Gymnophiura (tree size 7)

Dictenophiura (tree size 8)

Ophioplinthus (tree size 36)

Ophiopleura (tree size 3)

Ophiopyrgus (tree size 9)

Ophioperla (tree size 2)

Ophiosparte (tree size 1)

Spinophiura (tree size 1)

Euvondrea (tree size 1)

Glaciacantha (tree size 3)

Ophioculina