Towards the end of the twentieth century, the so-called Dinosaur Renaissance took place in which a vast increase in scientific attention was given to the Dinosauria. As part of this development, the rate of dinosaurian discoveries quickly picked up. However, this has not resulted in a peak of stegosaurian finds, partly because most new sites are from the Cretaceous, when stegosaurian diversity had declined. In 2007, "Jiangjunosaurus" was reported, the first Chinese dinosaur named since 1994. Nevertheless, European and North-American sites have become productive again during the 1990s, "Miragaia" having been found in Portugal and a number of relatively complete "Hesperosaurus" skeletons having been excavated in Wyoming. Apart from the fossils per se, important new insights have been gained by applying the method of cladistics, allowing for the first time to exactly calculate stegosaurian evolutionary relationships.