Journal of Palaeogeography     2022 11 (4):  640-652    ISSN: 2095-3836  CN: 10-1041/P Scales in the Early Cretaceous bird Gansus from China provide evidence on the evolution of avian scales Tao Zhaoa, Zhi-Heng Lib,c, He Zhanga, Yan-Hong Pana,* aState Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Centre for Research and Education on Biological Evolution and Environment and Frontiers Science, Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, Jiangsu Province, China; bKey Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; cCAS Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Beijing 100044, China Received: 2021-12-22  Revised: 2022-08-07  Online: null Supporting info