The Indricotherinae subfamily, to which "Paraceratherium" belongs, is considered part of the Hyracodontidae, a family containing long-legged members adapted to running, such as "Hyracodon".
The Indricotherinae subfamily, to which "Paraceratherium" belongs, was first classified as part of the Hyracodontidae family by Leonard B. Radinsky in 1966. The hyracodont family contains long-legged members adapted to running, such as "Hyracodon".