Figure 2: Details of tail feather of specimen UFRJ-DG 031 Av.
(a) Proximal end. (b) Distal end. cal, calamus; lg, longitudinal groove; ra, rachis; sp, colour spot; v, vane. Scale bar, 2.5 mm.
Figure 2: Details of tail feather of specimen UFRJ-DG 031 Av. | Nature Communications
