Dinosaur red blood cells and fibres similar to collagen
In 75-million-year-old dinosaur bones from the Cretaceous, scientists identified structures that appear to be red blood cells and fibres similar to collagen. Credit: Sergio Bertazzo, Susannah C. R. Maidment, Charalambos Kallepitis, Sarah Fearn, Molly M. Stevens and Hai-nan Xie Fibres and cellular structures preserved in 75-million–year-old dinosaur specimens. Nature Communications, 2015 DOI: 10.1038/ncomms8352
