Using information in taxonomists’ heads to resolve hagfish and lamprey relationships and recapitulate craniate–vertebrate phylogenetic history

  title={Using information in taxonomists’ heads to resolve hagfish and lamprey relationships and recapitulate craniate–vertebrate phylogenetic history},
  author={Maria Abou Chakra and Brian K. Hall and John Stone},
  journal={Historical Biology},
  pages={652 - 660}
In 1806, a hypothesis in which hagfishes and lampreys were classified as the taxon Cyclostomi was proposed on the basis of shared morphological traits. That ‘monophyletic cyclostome’ classification prevailed into the twentieth century and has persisted until the present. In 1958, a study involving coordinate grid transformations to analyse head ontogenies for living and fossil craniates was published. Results obtained in that evolutionary–developmental analysis revealed that extant hagfishes… Expand
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