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:	Secernentea
Subclass:	Diplogasteria Hodda, 2003
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

References

1. De Ley, P.; Blaxter, M. (2002). "Systematic position and phylogeny. In Lee, D.L., Ed". The Biology of Nematodes.
2. Hodda, M. (2007). "Phylum Nematoda". Zootaxa. 1668: 265–293. doi:10.11646/zootaxa.1668.1.14.
3. ven Megen, H.; et al. (2009). "A phylogenetic tree of nematodes based on about 1200 full-length small subunit ribosomal DNA sequences". Nematology. 11 (6): 927–950. doi:10.1163/156854109X456862.
4. Susoy, V.; Ragsdale, E.J.; Kanzaki, N.; Sommer, R.J. (2015). "Rapid diversification associated with a macroevolutionary pulse of developmental plasticity". eLife. 4: e05463. doi:10.7554/eLife.05463. PMC 4357287. PMID 25650739.

• Tree of Life Web Project (ToL) (2002): Nematoda. Version of 2002-JAN-01. Retrieved 2008-NOV-02.