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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)
Ecdysozoa (Ecdysozoan)
Cycloneuralia
Scalidophora
Kinorhyncha (Kinorhynchs)
Homalorhagida

Pycnophyidae (3411186)

Children (8 direct children, 150 direct and indirect children):

Kinorhynchus (tree size 30)

Pycnophyes (tree size 74)

Cristaphyes (tree size 25)

Leiocanthus (tree size 13)

Fujuriphyes

Higginsium

Krakenella

Setaphyes