• DOI:10.1111/j.1525-142X.2011.00478.x
Corpus ID: 28145236

Finding the frame shift: digit loss, developmental variability, and the origin of the avian hand

@article{Bever2011FindingTF,
  title={Finding the frame shift: digit loss, developmental variability, and the origin of the avian hand},
  author={G. Bever and J. Gauthier and G. Wagner},
  journal={Evolution & Development},
  year={2011},
  volume={13}
}

G. Bever, J. Gauthier, G. Wagner

Published 2011

Biology, Medicine

Evolution & Development

SUMMARY The origin of the tridactyl hand of crown birds from the pentadactyl hand of those early theropod dinosaurs lying along the avian stem has become a classic, but at times seemingly intractable, historical problem. The point in question is whether the fingers of crown birds represent digits 1–3 as predicted by generalized trends in the fossil record; or digits 2–4, as evidenced by the topology of the embryonic mesenchymal condensations from which the digits develop. The frame shift… CONTINUE READING

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