Two different views of the lower jaw of a mastodon with some teeth in place and two protruding tusks.
black and white photograph
Digitized by Forsyth Digital Collections
Copyright University Archives, Fort Hays State University
Sternberg, George Fryer 1883-1969, "005_04: Camping in Oakley and Collection of Fossil Specimens" (2021). George Sternberg Album #4. 14.