Planet Earth Prehistoric Dinosaurs 12 Piece Playset. Great set of dinosaurs with the look of classic toy dinos figures from 50"s and 60"s. Made from plastic and measure from 2.25 inches long up to 4 inches long. Includes some hard to find megafauna megafauna mammals and a T-Rex with strange limbs that doesn"t stand up well . Set includes: Uintatherium, Macrauchenia, Stegasaurus, Dimetrodon, Triceratops, Ankylosaurus, Styracosaurus, Edmontosaurus (also known as Trachodon Duck-billed Dinosaur), Tyrannosaurus, Allosaurus, Apatosaurus (also known a Brontosaurus).