Via Daily Herald:

Mr. Nixon, the plaster cast skull of a triceratops, greets visitors
to the "Dinosaurs: The Art and Science of Paleontology" exhibit running
through May 3 at the Aurora Public Art Commission's third floor gallery at the David L. Pierce Art and History Center in Aurora.

The prehistoric dinosaur isn't named after the former
president, but rather the cattle rancher on whose property he was found
in South Dakota, explains Rob Sula, artist and field paleontologist,
whose natural history-themed art, paleo-illustrations and site maps of
found fossils fill the gallery.