Diplogasteroidea
(tree size 10)
Alloionematoidea
Rhabditoidea
(tree size 12)
Rhabditomorpha
(tree size 5)
Diplogasteromorpha
Bunonematoidea
Cephaloboidea
(tree size 10)
Diplogastroidea
(tree size 175)
Odontopharyngoidea
Cylindrocorporidea
Bunonematomorpha