The pectoral fin of Panderichthys and the origin of digits

@article{Boisvert2008ThePF,
  title={The pectoral fin of Panderichthys and the origin of digits},
  author={C. Boisvert and E. Mark-Kurik and P. Ahlberg},
  journal={Nature},
  year={2008},
  volume={456},
  pages={636-638}
}
  • C. Boisvert, E. Mark-Kurik, P. Ahlberg
  • Published 2008
  • Biology, Medicine
  • Nature
  • One of the identifying characteristics of tetrapods (limbed vertebrates) is the presence of fingers and toes. Whereas the proximal part of the tetrapod limb skeleton can easily be homologized with the paired fin skeletons of sarcopterygian (lobe-finned) fish, there has been much debate about the origin of digits. Early hypotheses interpreted digits as derivatives of fin radials, but during the 1990s the idea gained acceptance that digits are evolutionary novelties without direct equivalents in… CONTINUE READING

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