Towards a phylogeny of gastropod molluscs: an analysis using morphological characters

  title={Towards a phylogeny of gastropod molluscs: an analysis using morphological characters},
  author={Winston F. Ponder and David R. Lindberg},
  journal={Zoological Journal of the Linnean Society},
Abstract Morphological (including ultrastructural) and developmental characters utilized in recent literature are critically reviewed as the basis to reassess the phylogenetic relationships of gastropods. The purpose of this paper is to provide a framework of characters for future studies and a testable phylogenetic hypothesis. This is one of the first attempts to use such characters to assess the relationships of all major clades using parsimony methods. The analysis uses 117 characters and… 

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