On the phylogeny and evolutionary history of pterosaurs

@article{Unwin2003OnTP,
  title={On the phylogeny and evolutionary history of pterosaurs},
  author={David M. Unwin},
  journal={Geological Society, London, Special Publications},
  year={2003},
  volume={217},
  pages={139 - 190}
}
  • D. Unwin
  • Published 2003
  • Biology
  • Geological Society, London, Special Publications
Abstract Previous cladistic studies of pterosaur relationships suffer from restricted numbers of taxa and characters, incomplete data sets and absence of information on characters, tree structure and the robustness of tress. Parsimony analysis of a new character data set (60 characters, 20 terminal taxa, 97.75% complete) yielded six trees. In the strict consensus tree Preondactylus is the most basal taxon followed, stepwise, by the Dimorphodontidae and the Anurognathidae. Beyond this basal… 
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