Journal of Palaeogeography     2019 8 (1):  1-18    ISSN: 2095-3836  CN: 10-1041/P Ornamental feathers in Cretaceous Burmese amber: resolving the enigma of rachis-dominated feather structure Lida Xing1, Pierre Cockx3,4, Ryan C. McKellar3,4,5, Jingmai O’Connor6 1 State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Beijing), Beijing 100083, China; 2 School of the Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China; 3 Royal Saskatchewan Museum, Regina, Saskatchewan S4P 4W7, Canada; 4 Biology Department, University of Regina, Regina, Saskatchewan S4S 0A7, Canada; 5 Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, Kansas 66045, USA; 6 Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China Received: 2018-10-17  Revised: null  Online: null Supporting info null