Molecular Phylogenetics of Mastodon and Tyrannosaurus rex

@article{Organ2008MolecularPO,
  title={Molecular Phylogenetics of Mastodon and Tyrannosaurus rex},
  author={C. Organ and M. Schweitzer and W. Zheng and Lisa M. Freimark and L. Cantley and J. Asara},
  journal={Science},
  year={2008},
  volume={320},
  pages={499 - 499}
}
We report a molecular phylogeny for a nonavian dinosaur, extending our knowledge of trait evolution within nonavian dinosaurs into the macromolecular level of biological organization. Fragments of collagen α1(I) and α2(I) proteins extracted from fossil bones of Tyrannosaurus rex and Mammut americanum (mastodon) were analyzed with a variety of phylogenetic methods. Despite missing sequence data, the mastodon groups with elephant and the T. rex groups with birds, consistent with predictions based… Expand
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