 It was synonymized subjectively with "Menodus" by Clark and Beerbower (1967).It was assigned to Brontotheriidae by Leidy (1870), Carroll (1988), Mader (1989), and Mader (1998).According to Mihlbachler and others, "Megacerops" includes the species of the genera "Menodus", "Brontotherium", "Brontops", "Menops", "Ateleodon", and "Oreinotherium".