Ontogeny, morphology and taxonomy of the soft‐bodied Cambrian ‘mollusc’ Wiwaxia

@article{Smith2014OntogenyMA,
  title={Ontogeny, morphology and taxonomy of the soft‐bodied Cambrian ‘mollusc’ Wiwaxia},
  author={Martin R. Smith},
  journal={Palaeontology},
  year={2014},
  volume={57}
}
The soft‐bodied Cambrian organism Wiwaxia poses a taxonomic conundrum. Its imbricated dorsal scleritome suggests a relationship with the polychaete annelid worms, whereas its mouthparts and naked ventral surface invite comparison with the molluscan radula and foot. 476 new and existing specimens from the 505‐Myr‐old Burgess Shale cast fresh light on Wiwaxia's sclerites and scleritome. My observations illuminate the diversity within the genus and demonstrate that Wiwaxia did not undergo discrete… 

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