Neurogenesis suggests independent evolution of opercula in serpulid polychaetes

@article{Brinkmann2009NeurogenesisSI,
  title={Neurogenesis suggests independent evolution of opercula in serpulid polychaetes},
  author={N. Brinkmann and A. Wanninger},
  journal={BMC Evolutionary Biology},
  year={2009},
  volume={9},
  pages={270 - 270}
}
BackgroundThe internal phylogenetic relationships of Annelida, one of the key lophotrochozoan lineages, are still heavily debated. Recent molecular analyses suggest that morphologically distinct groups, such as the polychaetes, are paraphyletic assemblages, thus questioning the homology of a number of polychaete morphological characters. Serpulid polychaetes are typically recognized by having fused anterior ends bearing a tentacular crown and an operculum. The latter is commonly viewed as a… Expand
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