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Pristionchus pacificus g001 (1).jpg
Diplogastridae Pristionchus pacificus
Scientific classification
Kingdom: Animalia
Phylum: Nematoda
Class: Secernentea
Subclass: Diplogasteria
Hodda, 2003
Order: Diplogasterida
Maggenti, 1982

Diplogasterida was formerly 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.



  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. 
  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: 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 4357287Freely accessible. PMID 25650739.