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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)
Spiralia (Spiralians)
Lophotrochozoa
Platyzoa
Platyhelminthes (Flatworms)
Neoophora
Trypanorhyncha

Eutetrarhynchidae (18681657)

Children (20 direct children, 132 direct and indirect children):

Prochristianella (tree size 26)

Parachristianella (tree size 11)

Eutetrarhynchus (tree size 23)

Tetrarhynchobothrium (tree size 5)

Trimacracanthus (tree size 2)

Mobulocestus (tree size 3)

Paroncomegas (tree size 3)

Oncomegas (tree size 10)

Mecistobothrium (tree size 7)

Parotobothrium (tree size 2)

Hemionchos (tree size 3)

Didymorhynchus (tree size 1)

Trigonolobium (tree size 2)

Fellicocestus (tree size 1)

Pseudochristianella (tree size 3)

Oncomegoides (tree size 1)

Zygorhynchus (tree size 4)
Zygorhynchus (eutetrarhynchidae)

Hispidorhynchus (tree size 4)

Poecilorhynchus (tree size 1)

Renibulbus