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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Chaetognatha (Arrow worms)
Sagittoidea
Phragmophora

Spadellidae (2808394)

Children (5 direct children, 39 direct and indirect children):

Paraspadella (tree size 11)

Bathyspadella (tree size 3)

Spadella (tree size 18)

Hemispadella (tree size 1)

Calispadella (tree size 1)