A Stegosaurus skeleton
Photo taken on April 5, 2007 shows two dinosaur fossils found in Xingyi of Guiyang, capital of southwest China's Guizhou Province. The two dinosaurs, respectively 23mm and 25mm in length, are believed to be the smallest dinosaur fossils in the world by now.
fossil of Archaeopteryx found in 1861
femur of the megalosaurus