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. 7 Unusual feathers in Cruralispennia IVPP V 21711 A. photograph of the full slab; B. close up of the unusual feathers on the tibiotarsus Scale bar in A equals 1 cm; scale bar in B equals 5 mm. Abbreviations see Fig. 4