Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological–molecular conflict in early vertebrate phylogeny

  title={Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological–molecular conflict in early vertebrate phylogeny},
  author={Tetsuto Miyashita and Michael I. Coates and Robert Farrar and Peter L. Larson and Phillip L. Manning and Roy A. Wogelius and Nicholas P. Edwards and Jennifer Ann{\'e} and Uwe Bergmann and A. Richard Palmer and Philip J. Currie},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  pages={2146 - 2151}
  • Tetsuto Miyashita, M. Coates, P. Currie
  • Published 22 January 2019
  • Biology, Environmental Science, Geography
  • Proceedings of the National Academy of Sciences of the United States of America
Significance Jawless, boneless, and virtually without fossil record, hagfish have long escaped systematists’ grip on their place among other fish. Yet their systematic resolution is critical to define vertebrates as a clade. Here we report an unequivocal fossil hagfish from the Cretaceous Mediterranean. Using this fossil to calibrate the evolutionary history of the group, our analysis supports hagfish and lampreys as sister groups, which likely diverged from one another in early Paleozoic times… 

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