Anatomy: Arsinoitherium was a large quadruped that had 5-toed feet and a small brain. It had 2 huge, conical, hollow horns made of bone on its snout. It was about 11.5 feet (3.5 m) long and about 6 ft (1.8 m) tall at the shoulder.

Diet: Arsinoitherium was an herbivore, a plant-eater. It may have grazed in forests near rivers.

Classification: Class Mammalia (mammals), Subclass Theria, Infraclass Eutheria (placental mammals) Order Embrithopoda, Family Arsinoitheriidae, Genus Arsinoitherium.