未成熟羽毛在早白垩世热河鸟类生物群幼年反鸟类中的首次报道

邹晶梅, 福雅曼, 王敏, 郑晓廷

First report of immature feathers in juvenile enantiornithines from the Early Cretaceous Jehol avifauna

Jingmai K. O’CONNOR, Amanda FALK, WANG Min, ZHENG Xiao-Ting

Fig. 6 Juvenile enantiornithines preserving possible immature feathers A. STM 34-1 with mature remiges and densely preserved body feathers that appear to be immature; B. STM 34-9 with sparsely preserved probable immature body feathers and a pair of rachis-dominated feathers; C. close up of the area marked in B showing early and mid-immature stage feathers on the forelimb. Scale bars = 1 cm