Partially resolved phylogeny of clades within the order Rhabditida, derived from small subunit rDNA* sequence analysis

Order Rhabditida in our system corresponds largely with Class Secernentea or Rhabditea in previous systems; taxa were Cephalobomorpha and Panagrolaimomorpha

*SSU rDNA is also frequently referred to as 18S or 16S rDNA

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For species or genera in red print, click on to see classification, or click on the name to see available resources

Click on the blue triangle to see placement of this clade within Nematoda

This phylogeny is modified from the following publication:

Félix, M.-A., P. De Ley, R.J Sommer, L.M. Frisse, S.A. Nadler, W.K. Thomas, J.R. Vanfleteren, and P.W. Sternberg. 2000. Evolution of vulva development in the Cephalobina (Nematoda). Developmental Biology 221: 68-86.