Genus BRONTOTHERIUM
Kingdom / Phylum . . . . . . . . Subphylum / Superclass . . . . Class / Subclass . . . . . . . . . . Infraclass / Division. . . . . . . . Subdivision / Infradivision . . . Superorder / Order. . . . . . . . Suborder / Infraorder . . . . . Superfamily / Family . . . . . . Subfamily / Genus . . . . . . . .	Animalia / Chordata Cephalochordata / Gnathostomata Mammalia / Theria Eutheria / Placentalia Laurasiatheria / Scrotifera Euungulata / Perissodactyla Titanotheriomorpha / n.a. n.a. / Brontotheriidae n.a. / Brontotherium
Age: Distribution:	Late Eocene North America
Note: Considered by some to be synonymous with Megacerops. Depicted on: Chad, 2012 (150 Fr., collective sheet, M.S. 2) Comoros, 1994 (M.S. margin) Djibouti, 2023 (M.S. 1 margin) Guinea-Bissau, 2019 (label in M.S.) Guyana, 2005 (M.S. 3 margin) Liberia, 2005 (position 2 of sheet 3) Nevis, 2005 (M.S. 3) Poland, 1966 (3,40 Z.)