Figure 1
From: Mid-Cretaceous amber inclusions reveal morphogenesis of extinct rachis-dominated feathers
Lithic Preservation of Early Cretaceous rachis-dominated feathers from the Yixian Formation. (a) Confuciusornis pair with and without rectrices. (b) Paired rectrices of an indeterminate enantiornithine displaying limited 3D preservation. (c) Junornis; an enantiornithine with proportionately long rachis-dominated rectrices. Abbreviations: ms, medial stripe; r, rachis.
