Larsen Puzzle on Natural History, 85 pieces. Explore and learn with this historical and illustrative puzzle that showcases the evolution of dinosaurs from the Triassic to the Quaternary periods. Can you help uncover what dinosaurs looked like over 200 million years ago? A variety of dinosaurs are featured, including the carnivorous Tyrannosaurus Rex and the swimming Temnodontosaurus. Throughout each epoch, you will see the development of the swimming dinosaurs that existed at that time. This includes the Plesiosaurus, Temnodontosaurus, Shonisaurus, Nothosaurus, Lipleurodon, and the Mosasaurus. Throughout the Jurassic, Cretaceous, Tertiary, and Quaternary periods, you will find Archosaurus, Allosaurus, Stegosaurus, Quetzalcoatlus, Triceratops, Spinosaurus, Pterodactyl, Gastornis, Moeritherium, Mammoth, Phenacodus, Uintatherium, Smilodon, Ambulocetus, Criorhynchus, Ankylosaurus, Seismosaurus, Brachiosaurus, and Barapasaurus. The puzzle features vibrant colors, 85 smaller pieces, and is best suited for older children.