EuroGraphics Feathered Dinosaurs 1000-Piece Puzzle. Over 20 feathered dinosaurs from the Jurassic and Cretaceous periods are illustrated along with details as to their size. Included are such notable dinosaurs as the Mononykus, Oviraptor, Troodon, Avimimus and Ornitholeptus to name but a few. Strong high-quality puzzle pieces. Made from recycled board and printed with vegetable based ink. This superior quality puzzle will delight and educate all at the same time.