In collaboration with colleagues from University of York, and elsewhere, we have helped to develop techniques for analysing sequences of collagen in ancient bone which shed light on important phylogenetic relationships that were previously inaccessible using traditional DNA dating techniques.
Link to full paper is http://dx.doi.org/10.1038/nature14249
and associated press coverage is here:
http://www.theguardian.com/science/2015/mar/19/mystery-of-darwins-strange-south-american-mammals-solved
http://www.scientificamerican.com/article/mystery-of-darwin-s-strange-animals-solved/
http://www.telegraph.co.uk/news/science/science-news/11481152/Mysterious-creature-which-baffled-Darwin-is-related-to-horse.html