From renowned pop-up masters Robert Sabuda and Matthew Reinhart comes an awe-inspiring tribute to the world''s most beloved extinct animals and their 180-million-year reign on our planet.Featuring more than 35 stunning pop-ups and fascinating, up-to-the-minute information about popular dinosaurs as well as many lesser-known varieties, this is an awe-inspiring tribute to the world''s most celebrated extinct animals and their 180-million-year reign of our planet.