TY - RPRT TI - Digital restoration of the pectoral girdles of two Early Cretaceous birds, and implications for early flight evolution AU - Wang, S. AU - Ma, Y. AU - Wu, Q. AU - Wang, M. AU - Hu, D. AU - Sullivan, C. AU - Xu, X. PY - 2021 DO - 10.1101/2021.12.10.472118 UR - https://www.biorxiv.org/content/10.1101/2021.12.10.472118v1 ID - 10.1101/2021.12.10.472118 ER -