Little something I whipped up last night after flipping through Matthew Mihlbachler's epic Species Taxonomy, Phylogeny, and Biogeography of the Brontotheriidae (Mammalia: Perissodactyla, available for free at the American Museum Novitates website. It is almost 500 pages of brontothere excellence.
Fun fact: all those restorations you see of many brontotheres (including Embolotherium) with a giant horn sticking out of the nose is wrong--the nasal "ram" has a deep channel on the anteroventral surface for the nasal septum. This means the nasal cavity extended to the peak of the ram. These were big-nosed animals! Of the two species of Embolotherium, E. grangeri's ram is tame by comparison to E. andrewsi!