For instance, in a small side room, US artist Dario Robleto's Setlists for a Setting Sun (The Crystal Palace)(2014) and The Sky, Once Choked with Stars, Will Slowly Darken (2011) are comprised of, among other minerals and objects,
sea urchin teeth, homemade crystals, glass domes, audio recordings and mica flakes (which can be found in the mountains of New Mexico).
They find the fossil bed rich with dozens of species of marine invertebrates, such as crabs, snails, clams,
sea urchins, large flat oysters and ammonites, as well as fish
teeth and scales.