Aulolaimidae
(tree size 38)
Tripyloididae
(tree size 82)
Bastianiidae
(tree size 12)
Axonolaimidae
(tree size 371)
Plectidae
(tree size 217)
Rhabdolaimidae
(tree size 49)
Teratocephalidae
(tree size 38)
Haliplectidae
(tree size 36)
Diplopeltidae
(tree size 89)
Halaphanolaimidae
(tree size 9)
Axonolaimoidea
(tree size 9)
Araeolaimidae