Amphiporidae
(tree size 236)
Emplectonematidae
(tree size 100)
Oerstediidae
(tree size 31)
Geonemertes
(tree size 10)
Vieitezia
(tree size 1)
Campbellonemertes
(tree size 1)
Quasitetrastemma
(tree size 3)
Fasciculonemertidae
(tree size 2)
Bdellonemertea
Prostomatidae
(tree size 21)
Diplomma
(tree size 4)
Arenogigas
(tree size 1)
Arhochmus
(tree size 1)
Abyssonemertes
(tree size 1)
Zygonemertidae