Kingdom Animalia Linnaeus, 1758 - animals
Ref: Z.-Q. Zhang, 2011: 9
Phylum Nematoda Gegenbaur, 1859 - round worms
Ref: M. Hodda, 2011: 63; 10
Class Chromadorea Inglis, 1983
Ref: M. Hodda, 2011: 70
Subclass Plectia Hodda, 2007
Ref: M. Hodda, 2011: 71
Superorder Rhabditica Hodda, 2007
Ref: M. Hodda, 2011: 73
Order Drilonematida Hodda, 2011 [monotypic]
Ref: M. Hodda, 2011: 74 [new rank]
Suborder Drilonematina Hodda, 2011 [monotypic]
Ref: M. Hodda, 2011: 74 [new rank]
Superfamily Drilonematoidea Pierantoni, 1916
Ref: M. Hodda, 2011: 74 [new position]
1 Family Creagrocercidae Baylis, 1943
Ref: M. Hodda, 2011: 74
2 Family Drilonematidae Pierantoni, 1916
Ref: M. Hodda, 2011: 74
3 Family Homungellidae Timm, 1966
Ref: M. Hodda, 2011: 74
4 Family Mesidionematidae Poinar, 1978
Ref: M. Hodda, 2011: 74
5 Family Pharyngonematidae Chitwood, 1950
Ref: M. Hodda, 2011: 74
6 Family Scolecophilidae Baylis, 1943
Ref: M. Hodda, 2011: 74
7 Family Ungellidae Chitwood, 1950
Ref: M. Hodda, 2011: 74