Elasmotherium ("Thin Plate Beast") was a genus of giant rhinoceros which stood, on average, 2.7 metres (8.9 ft) high and 6 metres (20 ft) long, with a single two-meter-long horn in the forehead. The animal may have weighed up to 5 tonnes (5.5 short tons). Its legs were longer than those of other rhinos and were designed for galloping, giving it a horse-like gait. It was probably a fast runner, in spite of its size. Its teeth were similar to those of horses, and it probably grazed low herbs.
The genus appeared during the Late Pliocene in Central Asia, being derived from the genus Sinotherium. E. inexpectatum and E. peii inhabited Eastern China during the Upper Pliocene to Early Pleistocene. They disappeared approximately 1.6 Ma. The earliest records of Elasmotherium species in Russia are known from the Upper Pliocene assemblages near the Black Sea. E. caucasicum was widely distributed in this area between 1.1 Ma and 0.8 Ma. The more advanced (and largest member of the genus) E. sibiricum appeared in the Middle Pleistocene. It occupied all of the southwestern part of Russia, reaching eastward to western Siberia, then south into Ukraine and Moldova. Elasmotherians persisted in eastern Europe until the end of the Middle Pleistocene.