Mammalia - Perissodactyla - Brontotheriidae

Alternative combination: Limnohyus robustus

Synonyms: Limnohyops diaconus Cope 1873, Limnohyus diaconus Cope 1873, Limnohyus humilis Leidy 1872, Palaeosyops copei Osborn 1908, Palaeosyops diaconus Cope 1873, Palaeosyops grangeri Osborn 1908, Palaeosyops humilis Leidy 1872, Palaeosyops leidyi Osborn 1908

Parent taxon: Palaeosyops according to G. F. Gunnell and V. L. Yarborough 2000

Sister taxa: Palaeosyops fontinalis, Palaeosyops laevidens, Palaeosyops laticeps, Palaeosyops paludosus

Type specimen: Its type locality is Henry's Fork Hill (Bridger C), which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming

Ecology: ground dwelling browser

Average measurements (in mm): M1 length 29.9, M1 width 32.7, M1 area 977.7, M2 length 38.9, M2 width 39.6, M2 area 1540.4, M3 length 38.8, M3 width 41.3, M3 area 1602.4, m1 length 28.7, m1 width 19.3, m1 area 553.9, m2 length 35.1, m2 width 23.6, m2 area 828.4, m3 length 47.8, m3 width 24.8, m3 area 1185.4

Estimated body mass: 808.3 kg based on M2 area, m1 area, m2 area, and m3 area