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.
Fragmentary fossil frond and pinna of Drynaria lanpingensis sp. nov. with in situ spores from the late Pliocene Lanping, northwestern Yunnan. 1. Fragmentary frond, LP 001; 2. Fragmentary pinna, LP 002; 3. Counterpart of LP 002; 4. An amplified pinna of the fragmentary frond.
