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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
Nematoida (Nematoidea)
Nematoda (Roundworm)
Secernentea
Spiruria (Spiuria)
Spirurida

Tetrameridae (3719421)

Children (7 direct children, 50 direct and indirect children):

Placentonema (tree size 2)

Tetrameres (tree size 20)

Microtetrameres (tree size 7)

Crassicauda (tree size 13)

Geopetitia (tree size 1)

Crassicaudinae

Tetramerinae