Fossils from the smallest dinosaur found in North America, a fleet-footed species only 28 inches long and weighing 2 ounce, have gone on public display for the first time at a Los Angeles museum. The bones were discovered in western Colorado in the late 1970s but only recently identified and named Fruitadens haagarorum by an international team of scientists. The fossils represent the skulls, vertebrae, arms and legs of four individual dinosaurs and are housed at the Natural History Museum of Los Angeles County, which put them on display on Tuesday. Scientists say Fruitadens haagarorum lived about 150 million years ago, during the Late Jurassic period, probably darting between the legs of much larger dinosaurs such as Brachiosaurus, Allosaurus and Torvosaurus.