FIGURE 3. Integumentary structures of IVPP V11579.
From the following article:
Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids
Xing Xu, Mark A. Norell, Xuewen Kuang, Xiaolin Wang, Qi Zhao and Chengkai Jia
Nature 431, 680-684(7 October 2004)
doi:10.1038/nature02855
a, b, Filamentous integumentary structures along the dorsal edge of the distal caudal vertebrae, photograph (a) and linedrawing (b). c, d, Close-up of the integumentary structures showing the simple branching pattern, photograph (c) and linedrawing (d). Not to scale.
