Phylogeny of basal descendants of cocoon-forming annelids (Clitellata)

@article{Christoffersen2012PhylogenyOB,
  title={Phylogeny of basal descendants of cocoon-forming annelids (Clitellata)},
  author={Martin Lindsey Christoffersen},
  journal={Turkish Journal of Zoology},
  year={2012}
}
Molecular analyses have been unsuccessful in placing the clitellates among annelids. Available morphological characters are ordered into congruent transformation series according to Hennigian principles. Orbiniidae is chosen as the outgroup. I propose the following phylogeny [number of apomorphies within brackets]: (Clitellata sensu lato [6] (Questidae [6] + Apodadrilida, new [2] (Parergodrilidae [3] (Stygocapitella [3] + Parergodrilus [4]) + Oligochaeta [7] (Aphanoneura [2] (Aeolosomatidae [2… 

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