A role for iron and oxygen chemistry in preserving soft tissues, cells and molecules from deep time by Mary H. Schweitzer, Wenxia Zheng, Timothy P. Cleland,

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A role for iron and oxygen chemistry in preserving soft tissues, cells and molecules from deep time by Mary H. Schweitzer, Wenxia Zheng, Timothy P. Cleland, Mark B. Goodwin, Elizabeth Boatman, Elizabeth Theil, Matthew A. Marcus, and Sirine C. Fakra Proceedings B Volume 281(1775): January 22, 2014 ©2014 by The Royal Society

TEM images of (a,c,e) T. rex (MOR 1125) vessels, (b,d) B. canadensis (MOR 2598) vessels and (f) ostrich vessels. Mary H. Schweitzer et al. Proc. R. Soc. B 2014;281: ©2014 by The Royal Society

(a–c) µ-XRF maps of HB-incubated ostrich, B. canadensis (MOR 2598) and T. rex (MOR 1125) vessel tissues at 3 µm resolution, with locations of analysis identified by white numerical labels, illustrating the intimate association of Fe with each vessel tissue. Mary H. Schweitzer et al. Proc. R. Soc. B 2014;281: ©2014 by The Royal Society

Overlay and fluorescence microscopy images of dinosaur ‘osteocytes’ and vessels after exposure to polyclonal antibodies. Mary H. Schweitzer et al. Proc. R. Soc. B 2014;281: ©2014 by The Royal Society

Ostrich vessels isolated from extant bone. Mary H. Schweitzer et al. Proc. R. Soc. B 2014;281: ©2014 by The Royal Society