Archaeopteryx is one of the most important fossils ever discovered. It is a bird from the Upper Jurassic, about 150 million years ago. It shows the evolutionary link between non-avian theropod dinosaurs and birds. The first "Archaeopteryx" was found in 1860 near Solnhofen in Bavaria, Germany. Today, ten skeletons and one feather of "Archaeopteryx" have been found.