Wikipedia
Metamynodon
Metamynodon is an extinct genus of amynodont perissodactyls whose known species lived in North America ( White River Fauna) during the early Oligocene, although the questionable inclusion of M. mckinneyi could extend their range back in time, to the Middle Eocene.They were large, displaying a suit of semiaquatic adaptations similar to those of the modern hippopotamus despite their closer affinities with rhinoceroses.
Usage examples of "metamynodon".
The metamynodons were actually more closely related to rhinos than were the arsinoetheres.
Around us swirled traffic of every sort: machines, wheeled and wheelless vehicles pulled by animals and slaves, walkers, and riders on the backs of dromedaries, oxen, metamynodons, and hackneys.