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.
A large, heavily armored plant-eating reptile (Desmatosuchus) of the Late Triassic on display at the Rainbow Forest Museum in Petrified Forest National Park.
Public Domain.
