Diplogasterida

Diplogasterida was an order of nematodes. It was sometimes placed in a monotypic subclass Diplogasteria, but molecular phylogenetic evidence has shown it to be embedded in the family Rhabditidae (formerly Rhabditina). The confusion of having a hierarchical nesting of groups that were formerly mutually exclusive has led to a profusion of names. Although completely revised taxonomy of nematodes that builds on recent classification systems^[1][2] as well as recent phylogenetic evidence^[3][4] is still necessary, most contemporary taxonomic studies now treat all groups listed under "Diplogasterina" below as a single family, Diplogastridae.

Diplogasterida
Diplogastridae Pristionchus pacificus
Scientific classification
Kingdom:	Animalia
Phylum:	Nematoda
Class:	Chromadorea
Superorder:	Rhabditica
Order:	Diplogasterida Maggenti, 1982
Families
Cylindrocorporidae Diplogastridae Diplogasteroididae Odontopharyngidae

Subdivisions

• Suborder Chambersiellina Hodda 2007
  • Superfamily Chambersielloidea Thorne 1937
    • Family Chambersiellidae Thorne 1937 (Sanwal 1957)
• Suborder Diplogasterina Paramonov 1952
  • Superfamily Cylindrocorporoidea T. Goodey 1939
    • Family Cylindrocorporidae T. Goodey 1939
    • Family Odontopharyngidae Micoletzky 1922
  • Superfamily Diplogasteroidea Micoletzky 1922
    • Family Cephalobiidae Travassos & Kloss 1960a
    • Family Diplogasteridae Micoletzky 1922
    • Family Diplogasteroididae Paramonov 1952
    • Family Neodiplogasteridae Paramonov 1952
    • Family Pseudodiplogasteroididae De Ley & Blaxter 2002
    • Family Tylopharyngidae Filipjev 1918
• Suborder Myolaimina Inglis 1983
  • Superfamily Carabonematoidea Stammer & Wachek 1952
    • Family Carabonematidae Stammer & Wachek 1952
  • Superfamily Myolaimoidea Goodey 1963
    • Family Myolaimidae Goodey 1963