EuroGraphics Dinosaurs of the Cretaceous Period 1000-Piece Puzzle Box size: 10" x 14" x 2.37". Finished Puzzle Size: 19.25" x 26.5". The Cretaceous period (144-65 million years ago) may have seen more dinosaurs than ever before. Over 20 of the most fascinating creatures are illustrated, such as giganotosaurus, tyrannosaurus and triceratops. 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.