Epsilonematidae
(tree size 181)
Monoposthiidae
(tree size 52)
Selachinematidae
(tree size 70)
Ceramonematidae
(tree size 116)
Comesomatidae
(tree size 389)
Microlaimidae
(tree size 172)
Desmodoridae
(tree size 590)
Draconematidae
(tree size 167)
Choniolaimidae
(tree size 106)
Cyatholaimidae
(tree size 438)
Xennellidae
(tree size 6)
Desmodorina
(tree size 1)
Desmodoroidea
Draconematoidea
Epsilonematoidea
Monoposthioidea