66 million years ago, having completed their 200-million-year history, dinosaurs disappeared from the face of the Earth. The famous American paleontologist Steve Brusatti traces their evolution through all periods, from the Triassic to the end of the Cretaceous. A passionate enthusiast and talented storyteller, he resurrects the lost world of the giant lizards, describing their mysterious origins, flourishing, amazing diversity and catastrophic extinction. Tyrannosaurus, Triceratops, Brontosaurus, the prehistoric ancestors of modern birds - the reader is introduced to them not only by vivid author's descriptions, but also by many illustrations and photographs. Brusatti also recalls interesting experiences from his many expeditions during the most exciting era of dinosaur research, which he calls "the golden age of discovery."