Let's Investigate: Prehistoric Teeth Sensory StonesLearn about different prehistoric creatures with these tactile Prehistoric Teeth, perfect for hands on learning! Dig up dinosaur teeth from an Allosaurus, Iguanodon, Mammoth, Pliosaur, Ptychodus, Stegosaurus, Triceratops and Tyrannosaurus Rex. You can also use these teeth models as playdough stamps, or make crayon pencil rubbings to get a better look at the patterns of the different types of teeth. These durable teeth are made from a stone mix, and