A role for iron and oxygen chemistry in preserving soft tissues, cells and molecules from deep time.

@article{Schweitzer2014ARF,
  title={A role for iron and oxygen chemistry in preserving soft tissues, cells and molecules from deep time.},
  author={Mary Higby Schweitzer and Wenxia Zheng and Timothy P Cleland and Mark B. Goodwin and Elizabeth M. Boatman and Elizabeth C. Theil and Matthew A Marcus and Sirine C. Fakra},
  journal={Proceedings. Biological sciences},
  year={2014},
  volume={281 1775},
  pages={20132741}
}
The persistence of original soft tissues in Mesozoic fossil bone is not explained by current chemical degradation models. We identified iron particles (goethite-αFeO(OH)) associated with soft tissues recovered from two Mesozoic dinosaurs, using transmission electron microscopy, electron energy loss spectroscopy, micro-X-ray diffraction and Fe micro-X-ray absorption near-edge structure. Iron chelators increased fossil tissue immunoreactivity to multiple antibodies dramatically, suggesting a role… CONTINUE READING