Elasmotherium Tshirt Extinct Rhinocerus Piacenzian E. Sibiricum Shirt. Elasmotherium is an extinct animal that used to live during the Late Pliocene until end of Pleistocene. If you like primitive extinct animals this design is perfect for showing everybody your enthusiasm. The large horn is what makes Elasmotherium so interesting and unique. Lightweight, Classic fit, Double-needle sleeve and bottom hem