Children (19 direct children, 964 direct and indirect children):
Thelazioidea
(tree size 21)
Filarioidea
(tree size 22)
Anguillicolidae
(tree size 8)
Onchocercidae
(tree size 132)
Spiruridae
(tree size 24)
Acuariidae
(tree size 189)
Tetrameridae
(tree size 50)
Thelaziidae
(tree size 71)
Habronematidae
(tree size 36)
Physalopteridae
(tree size 108)
Spiruroidea
(tree size 20)
Diplotriaenoidea
(tree size 31)
Rictulariidae
(tree size 19)
Gnathostomatidae
(tree size 27)
Camallanina
(tree size 164)
Setariidae
Rictularioidea
Drilonematoidea
(tree size 2)
Spirocercidae
(tree size 21)