However, unlike rhinos, the horns of brontotheres are composed of bone, the frontal bone and nasal bone, and were placed side-to-side rather than front-to-back.
Namun, tidak seperti badak, tanduk milik brontothere terbuat dari tulang, tulang frontal dan tulang nasal, dan terletak dari sisi-ke-sisi, bukan depan-ke-belakang.