Fig. 9.
Details of the tail feathering preserved in Yixianornis grabaui. Numbers placed at the distal ends of feathers correspond to the eight identified rectrices. Arrows and ‘?’ are explained in the text.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.