Cast of the skull of the dinosaur Stegoceras validum on display at the American Museum of Natural History in New York. Specimen is AMNH 1685, cast from UALVP 2. Original collected in 1921 by GF Sternberg for the University of Alberta at Red Deer River, Alberta. (labeled Stegoceras validus)
<a href="//commons.wikimedia.org/wiki/User:P2N2222A" class="mw-redirect" title="User:P2N2222A">Skye McDavid</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>