This is a fascinating find, and it's mind boggling to be able to view this delicate 99 Myo organic material preserved so well.
http://www.nature.com/news/bird-win...ossil-first-from-the-age-of-dinosaurs-1.20162
http://www.nature.com/ncomms/2016/160628/ncomms12089/full/ncomms12089.html
Two tiny wings locked in amber 99 million years ago suggest that in the middle of the Cretaceous period — when dinosaurs still walked the planet — bird feathers already looked a lot like they do today.
A team of researchers led by Lida Xing, a palaeontologist at the China University of Geosciences in Beijing, recovered a first for the time period: a few cubic centimetres of amber from northeastern Myanmar that contained the partial remains of two bird wings. The specimens include bone, feathers and skin, according to a study published on 28 June in Nature Communications1.
Prior evidence of bird plumage from the Cretaceous, which stretched from 145 million to 66 million years ago, came from 2D impressions left in sedimentary rocks and feathers that had been preserved in amber but that gave no skeletal clues to their species of origin
http://www.nature.com/news/bird-win...ossil-first-from-the-age-of-dinosaurs-1.20162
http://www.nature.com/ncomms/2016/160628/ncomms12089/full/ncomms12089.html