TY - RPRT TI - Three-dimensionally preserved 'Stage IIIb' fossil down feather supports developmental modularity in feather evolution AU - Roy, A. AU - Miller, C. V. AU - Pittman, M. AU - Kaye, T. G. AU - Peretti, A. PY - 2020 DO - 10.1101/2020.08.26.268060 UR - https://www.biorxiv.org/content/10.1101/2020.08.26.268060v1 ID - 10.1101/2020.08.26.268060 ER -