Dino Butt
Scientists find imprint of dinosaur posterior in Utah rock: "Amid well preserved dinosaur footprints along what used to be the shores of a prehistoric lake in southern Utah, scientists have found the rare signs of a dinosaur's posterior.

Two impressions, made about 200 million years ago when the dinosaur sat down, were found March 17 in St. George, in southwestern Utah, as scientists were investigating the area around a planned dinosaur museum."
- posted by Sophont @ Saturday, March 27, 2004